Vacuum cleaner combination and stick vacuum cleaner

ABSTRACT

A vacuum cleaner combination includes a dust suction apparatus and a dust bin configured to be coupled to the cup body and collect dust sucked by the dust suction apparatus. The vacuum cleaner combination is operable in and a second working mode. In the first working mode, the dust suction apparatus is not coupled to the dust bin, and the dust suction apparatus independently works and is responsible for dust suction and dust collection. In the second working mode, the dust suction apparatus is coupled to the dust bin, and the dust suction apparatus and the dust bin are both responsible for dust collection. Compared with the prior art, in the present invention, a dust bin detachable from a dust suction apparatus is disposed, so that a dust collection chamber of a vacuum cleaner is flexibly increased dust

BACKGROUND Technical Field

The present invention relates to the field of cleaning technologies, andin particular, to a vacuum cleaner combination provided with a dust bin,and a stick vacuum cleaner provided with the vacuum cleaner combination.

Related Art

In the prior art, there are usually lots of dust such as sawdust andsewage with dust in an environment such as a garage. A common vacuumcleaner has only a dust collection space of a dust bag or dust cup. Thespace is soon filled with dust when there is plenty, and needs to berepeatedly emptied. In addition, as more dust is collected, theefficiency of separation is reduced.

Therefore, for the problems in the prior art, it is necessary to providea flexibly disposed dust bin capable of increasing a dust collectionspace, a vacuum cleaner combination provided with the dust bin, and astick vacuum cleaner provided with the vacuum cleaner combination.

SUMMARY

The present invention provides a flexibly disposed dust bin capable ofincreasing a dust collection space, a vacuum cleaner combinationprovided with the dust bin, and a stick vacuum cleaner provided with thevacuum cleaner combination. Based on the design of the dust bin, thevacuum cleaner combination can meet cleaning requirements of differentscenarios, thereby improving the application range.

To achieve the foregoing objective, a technical solution of the presentinvention is:

A vacuum cleaner combination, comprising:

a dust suction apparatus, comprising a housing, a dust suction inlet,and a dust cup assembly connected to the housing, wherein the dust cupassembly comprises a cup body; and

a dust bin, configured to be coupled to the cup body and collect dustsucked by the dust suction apparatus, wherein the dust bin and the cupbody are in communication with each other, wherein

the vacuum cleaner combination is operable in and a second working mode;

in the first working mode, the dust suction apparatus is not coupled tothe dust bin, and the dust suction apparatus independently works and isresponsible for dust suction and dust collection; and

in the second working mode, the dust suction apparatus is coupled to thedust bin, the dust suction apparatus is responsible for dust suction,and the dust bin is responsible for dust collection.

Preferably, the dust bin comprises a dust chamber and a dust inlet incommunication with the dust chamber, and the dust inlet receives dustpassing through the dust suction apparatus when the vacuum cleanercombination is in the second working mode.

Preferably, the cup body is provided with a dust outlet, and the dustoutlet is airtightly joined to the dust inlet in the second workingmode.

Preferably, a first sealing member is disposed between the dust outletand the dust inlet.

Preferably, the dust outlet is columnar, the size of the dust inlet isgreater than that of the dust outlet, and the first sealing member isdisposed between the dust outlet and the dust inlet.

Preferably, the dust cup assembly is provided with a dust cup coverconfigured to seal the dust outlet, and a second sealing memberimplementing the seal between the dust outlet and the dust cup cover,and the first sealing member circumferentially surrounds the secondsealing member and the dust cup cover.

Preferably, the dust bin is provided with an abutting portion configuredto control the dust cup cover to automatically open, and the abuttingportion is disposed at the dust inlet and is located inside the firstsealing member.

Preferably, the dust suction apparatus is provided with a latchingportion controlling the dust cup cover to open or close, the abuttingportion is provided with a first location, and the abutting portion iscapable of abutting and fitting the latching portion at the firstlocation to control the dust cup cover to open.

Preferably, the handheld vacuum cleaner is also provided with a rotatingportion and a reset structure, when the latching portion controls thedust cup cover to open, the dust cup cover rotates around the rotatingportion, and when the latching portion releases locking, the dust cupcover is driven by the reset structure to open outward.

Preferably, the dust cup cover automatically opens outward by an anglein a range of 110° to 190°.

Preferably, the dust bin comprises a base portion and a top portion thatfits the base portion, and the top portion is provided with the dustinlet.

Preferably, the base portion is provided with a bottom surface locatedat the bottom and a side surface that is connected to the bottom surfaceand forms the dust chamber together with the bottom surface, and theside surface is provided with a transparent window.

Preferably, the base portion and the top portion flexibly fit eachother.

Preferably, a first fixing structure and a second fixing structure arerespectively disposed at two ends of the dust bin, and the handheldvacuum cleaner is provided with a first positioning buckle buckled withthe first fixing structure and a second positioning buckle buckled withthe second fixing structure.

Preferably, the dust suction apparatus comprises the dust cup assemblyand a motor assembly, the dust cup assembly comprises the cup body and acyclone separator disposed inside the cup body, the motor assembly isconfigured to generate a negative suction pressure, and the motorassembly is located between the dust suction inlet and the dust cupassembly.

Preferably, the dust suction inlet has an air inlet axis, the motorassembly has a motor axis, and the air inlet axis and the motor axis areparallel to each other.

Preferably, the dust suction apparatus comprises a flow-directingstructure, and the flow-directing structure is connected to the dustsuction inlet and the cup body to guide a dusty airflow into the cupbody through the dust suction inlet.

Preferably, the flow-directing structure is bent and extends outward ina pipe shape from an end, near the dust suction inlet, of the housing,and is connected to a side of the cup body and is in communication withthe cup body.

Preferably, the dust suction apparatus is provided with a batteryassembly, and the battery assembly and the motor assembly arerespectively located on two sides of the cup body.

Preferably, the cup body is provided with a dust outlet located at thebottom of the vacuum cleaner combination, and the battery assembly islocated at an end, near the dust outlet, of the cup body.

Preferably, the dust suction apparatus comprises a handle assembly, thehandle assembly is used for gripping, the handle assembly comprises afirst gripping area and a second gripping area, and gripping directionsof the first gripping area and the second gripping area are different.

Preferably, the first gripping area is near the motor assembly and islocated above the cup body.

Preferably, the second gripping area extends in a length direction ofthe cup body, and the second gripping area and the motor assembly arerespectively located on two sides of the cup body.

Preferably, the dust suction apparatus is provided with a batteryassembly, and the battery assembly is located below the second grippingarea and is mounted adjacent to the second gripping area.

Preferably, an angle between the first gripping area and the secondgripping area is from 90° to 135°.

Preferably, the dust suction apparatus comprises the dust cup assemblyand a motor assembly, the dust cup assembly comprises a cycloneseparator disposed inside the cup body and provided with a plurality ofairflow through holes and a filter disposed inside the cycloneseparator, and the cyclone separator circumferentially surrounds atleast a part of the filter.

Preferably, the cyclone separator comprises a main body, the main bodyis a hollow cone whose outer diameter decreases towards the bottom ofthe cup body, and the plurality of airflow through holes are opened inthe main body.

Preferably, the filter is a hollow cone whose outer diameter decreasestowards the bottom of the cup body, and the filter forms an airflowoutlet channel in communication with the motor assembly in an axialdirection.

Preferably, the material of the filter is waterproof hypalon.

Preferably, the filter is columnar, and is surrounded by laminatedwaterproof hypalon to form a hollow columnar shape, and a fold width ofthe filter is from 2 mm to 20 mm; and/or, a lateral area of the columnof the filter is from 15,000 square millimeters to 20,000 squaremillimeters; and/or, an unfolded area of the filter is from 80,000square millimeters to 120,000 square millimeters.

Preferably, the dust cup assembly comprises a cyclone separator disposedinside the cup body and provided with a plurality of airflow throughholes and a filter disposed inside the cyclone separator, a motorassembly is configured to supply power and generate a negative suctionpressure, and in the first working mode, a dusty airflow enters thecyclone separator through the airflow through holes after entering thecup body and rotating around the cyclone separator, and flows upward toflow to the motor assembly for discharge after being filtered by thefilter inside the cyclone separator.

Preferably, the dust cup assembly comprises a cyclone separator disposedinside the cup body and provided with a plurality of airflow throughholes and a filter disposed inside the cyclone separator, and a motorassembly is configured to supply power and generate a negative suctionpressure, and

in the second working mode, after a dusty airflow enters the cup bodyand rotates around the cyclone separator and is separated, a part of theairflow flows upward to flow to the motor assembly for discharge afterbeing filtered by the filter inside the cyclone separator; and the otherpart of the airflow flows upward to the cup body after flowing to anexpansion box of the dust bin, and flows upward to the motor assemblyfor discharge after being filtered by the filter inside the cycloneseparator.

Preferably, the cyclone separator comprises a flow-guiding structure,and the flow-guiding structure is disposed below a main body andcomprises a plurality of guiding bars; and the guiding bars are arrangeddiagonally and an arrangement direction is the same as an airflowrotating direction.

To achieve the foregoing objectives, another technical solution adoptedby the present invention is:

A vacuum cleaner combination, comprising:

a dust suction apparatus, comprising a housing, a dust suction inlet,and a dust cup assembly connected to the housing, wherein the dust cupassembly comprises a cup body; and

a dust bin, configured to be coupled to the cup body and collect dustsucked by the dust suction apparatus, wherein the dust bin and the cupbody are in communication with each other, wherein

the vacuum cleaner combination is operable in and a second working mode,the dust suction apparatus has a first dust collection capacity, and thedust bin has a second dust collection capacity;

in the first working mode, a dust collection capacity is the first dustcollection capacity; and

in the first working mode, the dust collection capacity is the sum ofthe first dust collection capacity and the second dust collectioncapacity.

To achieve the foregoing objectives, another technical solution adoptedby the present invention is:

A stick vacuum cleaner, comprising a hollow extension pipe and a cleanerhead, wherein the stick vacuum cleaner further comprises the vacuumcleaner combination according to any one of claims 1 to 33, a dustsuction apparatus in the vacuum cleaner combination is detachablyconnected to an extension pipe, one end of the extension pipe is incommunication with a dust suction inlet of the dust suction apparatus,the other end of the extension pipe is in communication with the cleanerhead, and the cleaner head is provided with a suction channel incommunication with the inside of the extension pipe.

Compared with the prior art, in the present invention, a dust bindetachable from a dust suction apparatus is disposed, so that a dustcollection chamber of a vacuum cleaner is flexibly increased. The dustbin has a simple structure, and is combined with the dust suctionapparatus to form a compact structure and occupy a small space, so as tomeet cleaning requirements of scenarios with different amounts of dust.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention is further described below with reference to theaccompanying drawings and embodiments.

FIG. 1 is a schematic diagram of a handheld vacuum cleaner according toa first embodiment of the present invention;

FIG. 2 is a schematic diagram of FIG. 1 from another angle.

FIG. 3 is a sectional view along a line A-A in FIG. 2, indicating a flowdirection of an air channel;

FIG. 4 is a sectional view along a line A-A in FIG. 2, indicatingvarious axes;

FIG. 5 is a schematic diagram showing that a dust cup cover is closed inthe handheld vacuum cleaner according to the first embodiment of thepresent invention;

FIG. 6 is a schematic diagram showing that a dust cup cover is open inthe handheld vacuum cleaner according to the first embodiment of thepresent invention;

FIG. 7 is an exploded view of a filter apparatus in the handheld vacuumcleaner from an angle according to the first embodiment of the presentinvention;

FIG. 8 is an exploded view of a filter apparatus in the handheld vacuumcleaner from another angle according to the first embodiment of thepresent invention;

FIG. 9 is an exploded view of the filter apparatus without a positioningplate in the handheld vacuum cleaner according to the first embodimentof the present invention;

FIG. 10 is a schematic diagram of a working state of the handheld vacuumcleaner according to the first embodiment of the present invention;

FIG. 11 is a schematic diagram of another working state of the handheldvacuum cleaner according to the first embodiment of the presentinvention;

FIG. 12 is a schematic diagram of a stick vacuum cleaner according to afirst embodiment of the present invention;

FIG. 13 is a schematic diagram of a dust bin according to a firstembodiment of the present invention;

FIG. 14 is a schematic diagram of a base portion of the dust binaccording to the first embodiment of the present invention;

FIG. 15 is a top view of FIG. 14;

FIG. 16 is a schematic diagram of a top portion of the dust binaccording to the first embodiment of the present invention;

FIG. 17 is a top view of FIG. 16;

FIG. 18 is a bottom view of FIG. 16;

FIG. 19 is a front view of FIG. 16;

FIG. 20 is a schematic diagram of a first state of the dust binaccording to the first embodiment of the present invention;

FIG. 21 is a top view of FIG. 20;

FIG. 22 is a schematic diagram of a second state of the dust binaccording to the first embodiment of the present invention;

FIG. 23 is a schematic three-dimensional diagram of a dust bin accordingto a second embodiment of the present invention;

FIG. 24 is a top view of FIG. 23;

FIG. 25 is a schematic three-dimensional diagram of the first state ofthe dust bin in the first embodiment in a handheld vacuum cleanercombination according to a first embodiment of the present invention;

FIG. 26 is a top view of FIG. 25;

FIG. 27 is a sectional view of FIG. 25;

FIG. 28 is a schematic three-dimensional diagram showing that the dustcup cover is open in the second state of the dust bin in the firstembodiment in the handheld vacuum cleaner combination according to thefirst embodiment of the present invention;

FIG. 29 is a schematic three-dimensional diagram showing that the dustcup cover is closed in the second state of the dust bin in the firstembodiment in the handheld vacuum cleaner combination according to thefirst embodiment of the present invention;

FIG. 30 is a sectional view of FIG. 29;

FIG. 31 is a schematic three-dimensional diagram of a third state of thedust bin in the first embodiment in the handheld vacuum cleanercombination according to the first embodiment of the present invention;

FIG. 32 is a sectional view of FIG. 31;

FIG. 33 is a schematic three-dimensional diagram of the dust bin in thesecond embodiment in a handheld vacuum cleaner combination according toa second embodiment of the present invention;

FIG. 34 is a sectional view of FIG. 33;

FIG. 35 is a schematic diagram of a working state of the handheld vacuumcleaner combination according to the first embodiment of the presentinvention;

FIG. 36 is a schematic diagram of a working state of the handheld vacuumcleaner combination according to the second embodiment of the presentinvention;

FIG. 37 is a schematic diagram of a handheld vacuum cleaner according toa second embodiment of the present invention;

FIG. 38 is a schematic diagram of a working state of a handheld vacuumcleaner combination according to a third embodiment of the presentinvention;

FIG. 39 is a schematic diagram of a working state of a handheld vacuumcleaner combination according to a fourth embodiment of the presentinvention;

FIG. 40 is a schematic diagram of a handheld vacuum cleaner according toa third embodiment of the present invention;

FIG. 41 is a schematic diagram of a working state of a handheld vacuumcleaner combination according to a fifth embodiment of the presentinvention;

FIG. 42 is a schematic diagram of a working state of a handheld vacuumcleaner combination according to a sixth embodiment of the presentinvention;

FIG. 43 is a working schematic diagram of a stick vacuum cleaneraccording to a second embodiment of the present invention;

FIG. 44 is a working schematic diagram of a stick vacuum cleaneraccording to a third embodiment of the present invention;

FIG. 45 is a working schematic diagram of a stick vacuum cleaneraccording to a fourth embodiment of the present invention;

FIG. 46 is a working schematic diagram of a stick vacuum cleaneraccording to a fifth embodiment of the present invention;

FIG. 47 is a working schematic diagram of a stick vacuum cleaneraccording to a sixth embodiment of the present invention;

FIG. 48 is a working schematic diagram of a stick vacuum cleaneraccording to a seventh embodiment of the present invention;

FIG. 49 is schematic diagram of a first gripping scenario of a handleassembly according to the present invention;

FIG. 50 is schematic diagram of a second gripping scenario of a handleassembly according to the present invention;

FIG. 51 is schematic diagram of a third gripping scenario of a handleassembly in the present invention;

FIG. 52 is schematic diagram of a fourth gripping scenario of a handleassembly according to the present invention;

FIG. 53 is a schematic diagram of the handheld vacuum cleaner suckingwater according to the present invention;

FIG. 54 is a schematic diagram of the handheld vacuum cleaner accordingto the second embodiment of the present invention;

FIG. 55 is a sectional view of a dust cup assembly in FIG. 54;

FIG. 56 is a sectional view of a dust cup assembly in FIG. 54 fromanother angle;

FIG. 57 is a schematic three-dimensional diagram of a filter in FIG. 54;

FIG. 58 is a schematic three-dimensional diagram of a cyclone separatorin FIG. 54;

FIG. 59 is a schematic sectional view of the cyclone separator in FIG.58;

FIG. 60 is a schematic diagram of the handheld vacuum cleaner accordingto the third embodiment;

FIG. 61 is a schematic diagram of a handheld vacuum cleaner according tothe fourth embodiment;

FIG. 62 is a schematic diagram of the handheld vacuum cleaner in FIG. 61combined with a dust bin;

FIG. 63 is a schematic diagram of a handheld vacuum cleaner according tothe fifth embodiment;

FIG. 64 is a schematic diagram of the handheld vacuum cleaner in FIG. 63combined with a dust bin;

FIG. 65 is a sectional view of FIG. 64;

FIG. 66 is a schematic diagram of an airflow direction in the handheldvacuum cleaner in FIG. 63;

FIG. 67 is a schematic diagram of the sectional view in FIG. 64 withsize marks;

FIG. 68 is a schematic diagram of an airflow direction in the handheldvacuum cleaner in a first working mode according to a sixth embodiment;

FIG. 69 is a structural sectional view of a dust cup assembly in FIG.66;

FIG. 70 is a schematic diagram of an airflow direction in a secondembodiment in the handheld vacuum cleaner according to the sixthembodiment; and

FIG. 71 is a schematic diagram of the handheld vacuum cleaner accordingto the sixth embodiment combined with a dust bin.

DETAILED DESCRIPTION

The present invention discloses a vacuum cleaner combination, includinga dust suction apparatus and a dust bin that is combined with the dustsuction apparatus to collect dust sucked by the dust suction apparatus.The vacuum cleaner combination is operable in and a second working mode.In the first working mode, the dust suction apparatus is not coupled tothe dust bin, and the dust suction apparatus independently works and isresponsible for dust suction and dust collection. In the second workingmode, the dust suction apparatus is coupled to the dust bin. The dustsuction apparatus is only responsible for dust suction, and the dust binis responsible for dust collection. The dust suction apparatus has afirst dust collection capacity, and the dust bin has a second dustcollection capacity. In the first working mode, a dust collectioncapacity is the first dust collection capacity. In the first workingmode, the dust collection capacity is the sum of the first dustcollection capacity and the second dust collection capacity.Specifically, in the first working mode, the dust collection capacity isA, where A is the dust collection capacity of the dust suctionapparatus. In the second working mode, the dust collection capacity isA+B, where B is the dust collection capacity of the dust bin. The dustbin is disposed, so that the dust collection capacity is increased, andno additional dust collection channel is required. In addition, modeswitching is simple and easy, and it is not necessary to detach anoriginal dust cup assembly. A dust bin detachable from a dust suctionapparatus is disposed, so that a dust collection chamber of a vacuumcleaner is flexibly increased. The dust bin has a simple structure, andis combined with the dust suction apparatus to form a compact structureand occupy a small space, so as to meet cleaning requirements ofscenarios with different amounts of dust. For a scenario with a smallamount of dust, for example, a domestic scenario, the dust suctionapparatus may be separately used. The dust suction apparatus may be ahandheld vacuum cleaner or may be a horizontal vacuum cleaner or anothervacuum cleaner that is suitable for domestic use and can be combinedwith a dust bin through a structural design. For a scenario with a largeamount of dust, for example, a garage or an outdoor area with a largeamount of dust, a dust bin may be used to accommodate dust, to reducethe frequency of dumping dust by a user. When a dust bin is used in agarage or an outdoor area, a roller may be disposed at the bottom of thedust bin. In this way, it is convenient for a user to directly pull thedust bin without needing to lift it, thereby improving user experienceand use convenience.

The dust bin includes a dust chamber and a dust inlet in communicationwith the dust chamber. In the second working mode, the dust inletreceives dust passing through the dust suction apparatus. The dust binis disposed to be detachable from the dust suction apparatus, so that adust collection chamber of a vacuum cleaner is flexibly increased. Thedust bin has a simple structure. After the dust bin is joined to thedust suction apparatus, the structure is compact and occupies a smallspace, and the cleaning requirements of scenarios with different amountsof dust can be met. For a scenario with a small amount of dust such as adomestic scenario, the dust suction apparatus may be used alone. Thedust suction apparatus may be a handheld vacuum cleaner, a horizontalvacuum cleaner or another vacuum cleaner that is suitable for domesticuse and can be joined to the dust bin through structural design. For ascenario with a large amount of dust such as a garage or an outdoorspace with a large amount of dust, the dust bin may be used toaccommodate dust and dust, so as to reduce the frequency of dumping dustby a user. If the dust bin is used in a garage or an outdoor space,rollers may be disposed under the dust bin, so that the user candirectly pull the dust bin without lifting the dust bin, therebyenhancing the user experience and facilitate the use of the dust bin.

The dust suction apparatus includes a dust cup assembly and a motorassembly. The motor assembly includes a motor and a fan, and the motordrives the fan to rotate to form a negative pressure in the dust cupassembly. The dust cup assembly includes a cup body, a filter apparatusdisposed in the cup body, a dust outlet for emptying debris, and a dustcup cover for sealing the dust outlet. The dust outlet is locatedopposite and combined with the dust inlet in the second working mode.The dust outlet is located opposite and combined with the dust inlet inthe working mode and the transport/storage mode. The dust bin has anabutting portion that controls the dust cup cover to automatically open.The abutting portion is disposed, so that the dust cup cover canautomatically open without a separate operation of a user when the dustbin is combined with the dust suction apparatus, thereby improving theuse convenience.

In the description of the following embodiments of the presentinvention, the “dust” refers to different substances in different usescenarios rather than dust in the literal sense. For example, in anindoor domestic scenario, “dust” may be powder, bread crumbs, cookiecrumbs, mud, rice grains, clean water spilled on the floor, dirty wateror the like. In a garage environment or a scenario with dust in a largearea, “dust” may be sawdust, dirt, dirty water or the like. The “dust”represents different substances in different use scenarios, including,but not limited to, the foregoing examples.

To make the objectives, technical solutions, and advantages of thepresent invention clearer, the present invention is further described indetail below with reference to the accompanying drawings and theembodiments. It should be understood that the specific embodimentsdescribed herein are merely used to explain the present invention, butare not intended to limit the present invention. The dust suctionapparatus may be a household vacuum cleaner that can be joined to a dustbin through structural design such as a handheld vacuum cleaner and ahorizontal vacuum cleaner. The following embodiments are described witha handheld vacuum cleaner as an example, and the description of theembodiments of the handheld vacuum cleaner is also applicable to thehorizontal vacuum cleaner and other household vacuum cleaners that canbe joined to a dust bin.

As shown in FIG. 1 to FIG. 6, a handheld vacuum cleaner 100 is providedin a first embodiment of the present invention, and a filter apparatusis disposed obliquely in this embodiment. Specifically, the handheldvacuum cleaner 100 includes a dust cup assembly 1, a housing 3 connectedto the dust cup assembly 1, a handle assembly 4 disposed on the housing3 and used for gripping, a battery assembly 5 disposed below the handleassembly 4 and used for supplying electricity to the handheld vacuumcleaner 100, and an air flow generator 6 used for supplying power to thehandheld vacuum cleaner 100 and generating a negative pressure forvacuuming. The air flow generator 6 is disposed in the housing 3. Thehandheld vacuum cleaner 100 has a first positioning buckle 20 and asecond positioning buckle 21 that are respectively located at two endsof the handheld vacuum cleaner 100. The battery assembly 4 is disposedbelow and behind the air flow generator 5. The dust cup assembly 1 maybe fastened to the housing 3 by a buckle structure, or an end of thedust cup assembly 1 is disposed to be cylindrical and the dust cupassembly 1 and the housing 3 are provided with rotating threads tofasten the dust cup assembly 1 to the housing 3 by the rotating threads.

As shown in FIG. 1 to FIG. 6, the dust cup assembly 1 is provided with adust suction inlet 12 configured to guide an external airflow into ahandheld vacuum cleaner 100. The housing 3 is provided with an air flowoutlet 32. An air flow path is formed between the dust suction inlet 12and the air flow outlet 32. An air flow flows from the dust suctioninlet 12, passes through the dust cup assembly 1 and the air flowgenerator 6 in sequence, and eventually leaves the air flow outlet 32.

As shown in FIG. 3 to FIG. 6, in an embodiment of the present invention,the dust cup assembly 1 includes a cup body 11, a filter apparatus 13disposed in the cup body 11, a dust outlet 14 disposed on the cup body11, a dust cup cover 15 for sealing the dust outlet 14, a latchingportion 16 for controlling the dust cup cover 15 to be opened or locked,a rotating portion 17, and a reset structure 18. When the latchingportion 16 controls the dust cup cover 15 to be opened or locked, thedust cup cover 15 rotates around the rotating portion 17, and when thedust cup cover 15 is unlocked, the dust cup cover 15 is driven by thereset structure 18 to automatically open. The dust cup cover 15 opens atan angle ranging from 110 degrees to 190 degrees. The reset structure 18is disposed, so that one-push dumping can be implemented without needingto manually open the dust cup cover 15 for dumping, to make theoperation convenient and quick. In an embodiment of the presentinvention, as shown in FIG. 7, the reset structure 18 is a torsionspring structure. Certainly, in other embodiments, a person skilled inthe art may use other reset structures that can achieve the objectivesof the present embodiment. An outer periphery of the dust cup cover 15or the dust outlet 14 is provided with a second sealing member (notshown in the figure) for sealing the dust outlet 14 and the dust cupcover 15.

As shown in FIG. 7 to FIG. 9, in the embodiments of the presentinvention, the filter apparatus 13 is a filter apparatus using a cycloneseparator. The filter apparatus 13 includes a positioning plate 143, amain body portion 131 fastened to the positioning plate 143, a cyclone132 fastened to the positioning plate 143 and located in the main bodyportion 131, a filter 136, a cover plate 135 that is pressed against thefilter 136 to position the filter 136, and a sealing ring 137 forsealing the filter 136 to prevent dust from leaving from an outer edgeof the filter 136. The positioning plate 143 has a first fastening body1431 and a second fastening body 1432 integrally connected to an end ofthe first fastening body 1431. The first fastening body 1431 isconnected to the cup body 11, and the first fastening body 1431 isprovided with a fastening sealing ring 144. The fastening sealing ring144 is disposed to ensure the fastened sealing performance between thefirst fastening body 1431 and the cup body 11. In this embodiment, thefirst fastening body 1431 and the second fastening body 1432 are anintegral structure. In other embodiments, the first fastening body 1431and the second fastening body 1432 may be implemented by using a splitassembly structure. For example, the two parts are fastened by insertionor buckling or gluing. In this embodiment, the filter 136 is awaterproof filter, for example, a waterproof HEPA filter.

As shown in FIG. 7 to FIG. 9, in the embodiments of the presentinvention, the second fastening body 1432 has a receiving hole 1435 forreceiving the filter 136, a first positioning portion 1433 for fasteningthe cyclone 132, a second positioning portion 1434 for fastening themain body portion 131, and a third positioning portion 1436 forfastening the cover plate 135. A top portion of the cover plate 135 isprovided with an air outlet 1351 and a fourth positioning portion 1437buckled with the third positioning portion 1436. The mountingrelationships between all the structures of the dust cup assembly 1 areas follows: The cyclone 132 is first fastened to the second fasteningbody 1432 by the first positioning portion 1433. The main body portion131 is then fastened to the second fastening body 1432 by the secondpositioning portion 1434. The filter 136 is then placed in the receivinghole 1435. The sealing ring 137 is placed between the filter 136 and thesecond fastening body 1432 and implements sealing in a circumferentialdirection to prevent dust from flying out of the filter 136 in thecircumferential direction. The cover plate 135 is then pressed againstthe filter 136 and is fastened to the second fastening body 1432 by thecombination of the third positioning portion 1436 and the fourthpositioning portion 1437, and the filter 136 is further positioned. Anair flow obtained by cyclonic separation flows from the air outlet 1351to the air flow generator 6. In the embodiments shown in theaccompanying drawings of the present embodiment, the first fasteningbody 1431 intersects with and is approximately perpendicular to thesecond fastening body 1432. The angle between the first fastening body1431 and the second fastening body 1432 is not explicitly limited, andany angle is feasible provided that structures such as the cyclone 136are conveniently mounted.

As shown in FIG. 7 to FIG. 9, the main body portion 131 is provided witha separation inlet 138 connected to the dust suction inlet 12 and aseparation outlet 139 for throwing dust out of the main body portion131. The cyclone 132 is provided with several pores 134 for a cyclonicair flow to pass through. A cyclone chamber 133 is defined in the mainbody portion 131. On the air flow path, the filter 136 is locateddownstream of the cyclone 132. A dusty air flow enters the main bodyportion 131 through the separation inlet 138, cyclonic separation isperformed on the dusty air flow in the cyclone chamber 133, dust isthrown out through the separation outlet 139 and collected in the dustcup assembly 1, the filtered air flow containing a small amount of dustthen flows to the filter 136 through the pores 134 for re-filtration,and the air flow re-filtered by the filter 136 passes through the airflow generator 6 to be discharged from the air flow outlet 32.

As shown in FIG. 4, the cup body 11 includes a longitudinal axis X0extending longitudinally, and the longitudinal axis X0 is a lengthdirection of the handheld vacuum cleaner. The filter apparatus 13 isprovided with a first axis Y1 extending longitudinally, the filterapparatus 13 is disposed obliquely relative to the longitudinal axis X0,and there is an acute angle between the longitudinal axis X0 and thefirst axis Y1. The filter apparatus 13 is disposed obliquely, so thatcompared with a vertically placed filter apparatus in the prior art, theheight of the entire machine is reduced, and compared with ahorizontally placed filter apparatus in the prior art, the length of theentire machine is reduced, so that the vacuum cleaner has a compactstructure, a small size, and a light weight, and meets the currentmarket demand for lightweight and miniaturized vacuum cleaners.Moreover, the filter apparatus 13 is disposed obliquely, so thatcompared with a horizontally placed filter apparatus with a same orsimilar structure in the prior art, when dusty liquid is collected, theseparation outlet 139 may be disposed at a higher position, and comparedwith a horizontally placed filter apparatus in the prior art, theposition of the separation outlet 139 of the filter apparatus 13 may beraised to prevent dusty liquid from being drawn into the cyclone chamberagain to avoid blockage of the filter 136, prolong the service life ofthe filter 136, and prevent moisture in the liquid from entering the airflow generator to protect electrical parts from damage.

As shown in FIG. 4, the filter apparatus 13 extends obliquely downwardtoward the dust suction inlet 12 as viewed in a flow direction of theair flow. The angle between the longitudinal axis X0 and the first axisY1 is in principle greater than 0 degrees and less than 90 degrees. Inthe preferred embodiments of the present invention, the angle betweenthe longitudinal axis X0 and the first axis Y1 is between 30 degrees and60 degrees. In this preferred angle range, the entire machine has asmall structure, and the effect of cyclonic separation and the dustremoval performance of the entire machine can be ensured.

As shown in FIG. 3 to FIG. 9, a dust collection chamber 22 is formed inthe cup body 11, and the separation outlet 139 is in communication withthe dust collection chamber 22. The dust collection chamber 22 is usedto collect dust obtained after cyclonic separation in the filterapparatus in the presentembodiment. The filter apparatus 13 is disposedobliquely relative to the cup body 11 having the dust collection chamber22. If a vacuum cleaner has a plurality of filter apparatuses and theplurality of filter apparatuses have a plurality of dust accommodationcavities independent of each other, the body forming the dust collectionchamber may be considered as the cup body in the presentembodiment. Thatis, if a vacuum cleaner has a plurality of filter apparatuses and theplurality of filter apparatuses have a plurality of independent dustaccommodation cavities, it may be considered that the vacuum cleaner hasa plurality of cup bodies according to the presentembodiment, and thefilter apparatus is disposed obliquely relative to an axis of the cupbody in which the filter apparatus is located. Certainly, in anothercase in which there is only one dust collection chamber, a vacuumcleaner has one cup body in the presentembodiment, and the filterapparatus is disposed obliquely relative to an axis of the independentcup body. In the presentembodiment, the filter apparatus is disposedobliquely. From another angle, if a bottom surface of the vacuum cleaneris parallel to a horizontal plane and the vacuum cleaner is placed inthe horizontal plane, the filter apparatus is oblique relative to thehorizontal plane.

As shown in FIG. 3 to FIG. 9, when a dusty air flow swirls in thecyclone chamber 133, the separated dust is thrown out of the separationoutlet 139 under the action of the air flow and accumulated in the dustcollection chamber 22. The dust collection chamber 22 is located outsidethe filter apparatus 13. That is, the dust collection chamber 22 is incommunication with but spatially separated from the cyclone chamber 133.This design can prevent dust from drawn back into the filter apparatus13 by the flowing air flow, thereby effectively improving the separationeffect of the dusty air flow and avoiding blockage of the filter 136.

As shown in FIG. 3, from an angle of the dust collection chamber 22,after the filter apparatus 13 is disposed obliquely, a low point 141near the dust collection chamber and a high point 142 far away from thedust collection chamber 25 relative to the low point 141 are formed atan end, adjacent to the dust collection chamber 22, of the filterapparatus 13, and the separation outlet 139 is disposed at the highpoint 142. The filter apparatus 13 is disposed obliquely, so that ascompared with a horizontally placed filter apparatus with a same orsimilar structure in the prior art, when dusty liquid is collected, thisdesign may increase a dust collection space, and the separation outlet139 is disposed at the high point to raise the position of theseparation outlet 139 of the filter apparatus 13, which can preventdusty liquid from being drawn into the cyclone chamber again to avoidblockage of the filter, prolong the service life of the filter, andprevent moisture in the liquid from entering into the air flow generatorto protect electrical parts from damage.

In the embodiments of the present invention, the cyclone 132 is aone-stage cyclone structure, and dust in a dusty air flow entering themain body portion 131 can be centrifugally thrown out in a cyclonicmanner in the cyclone chamber 133, thereby further improving the dustremoval effect. In other embodiments, the cyclone 132 may be amulti-stage cyclone structure. That is, in the flow direction of the airflow, the cyclone chamber 133 includes a plurality of cyclone chambersthat are sequentially connected. In this way, a dusty air flow enteringthe main body portion 131 can pass through the plurality of cyclonechambers in sequence for repeated dust and air separation, therebyimproving the dust removal effect.

As shown in FIG. 5, a bottom surface 19 is located below the dust cupassembly 1, a support surface 31 is located below the battery assembly5, and the bottom surface 19 is coplanar with the support surface 31. Inthis way, the dust cup assembly 1 and the battery assembly 5 togethersupport the entire machine, so that the entire machine is relativelystably placed, and does not tilt or fall. The foregoing coplanar designis a preferred embodiment of the present invention, and in otherembodiments, due to the weight and placement angle of the air flowgenerator 6, the center of gravity of the entire machine tends to be atthe rear part of the entire machine. In this case, the dust cup assembly1 is not necessarily required to support the entire machine, so that thebottom surface 19 may be non-coplanar with the support surface 31.

As shown in FIG. 4 and FIG. 6, the dust suction inlet 12 includes afirst flow-directing section 121 and a second flow-directing section 122connected to the first flow-directing section 121. In the embodiments inthe accompanying drawings of the present invention, the firstflow-directing section 121 is formed on the cup body 11, and the secondflow-directing section 122 is formed on the main body portion 131. Sincethe first flow-directing section 121 and the second flow-directingsection 122 connected thereto are separately formed on two components,the first flow-directing section 121 may be connected to the secondflow-directing section 122 by a fastening structure or by a mutual fitbetween the first flow-directing section 121 and the secondflow-directing section 122. In other embodiments of the presentinvention, the first flow-directing section 121 in direct and proximatecommunication with the outside and the second flow-directing section 122connected to the first flow-directing section 121 may be directly formedon the cup body 11, and the cup body 11 is then connected to the mainbody portion 131 by the second flow-directing section 122. In theembodiments in which both the first flow-directing section 121 and thesecond flow-directing section 122 are disposed on the cup body 11, thefirst flow-directing section 121 and the second flow-directing section122 may be an integrally formed structure or may be two separatestructures that are combined with each other.

As shown in FIG. 4, the first flow-directing section 121 has a firstintake axis X1, the second flow-directing section 122 has a secondintake axis X2, and an angle α between the first intake axis X1 and thesecond intake axis X2 plus an angle β between the first axis Y1 and thelongitudinal axis X0 is equal to 90 degrees. That is, the sum of the twoangles is 90 degrees. Since an air flow tangentially enters the filterapparatus 13 and the filter apparatus 13 is disposed obliquely, adirection of the separation inlet 138 changes accordingly, and an airflow guided by the dust suction inlet 12 needs to be tilted and steeredto enter the separation inlet 138.

As shown in FIG. 4, the relationship between the first flow-directingsection 121 and the filter apparatus 13 is as follows: The first intakeaxis X1 intersects with and is not perpendicular to the first axis Y1,and an angle between the intake axis X1 and the first axis Y1 rangesfrom 30 degrees to 60 degrees. In the embodiments of the presentinvention, for the consistency of reference standard, the first intakeaxis X1 is parallel to the longitudinal axis X0. With the same standard,an angle of inclination of the filter apparatus 12 and an angle ofrotation of the second flow-directing section 24 can be accuratelydesigned.

The inclination direction of the filter apparatus 13 may be defined bythe angular relationship between the first axis Y1 and the longitudinalaxis X0 as described above. On the premise that the filter apparatus 13is disposed obliquely relative to the longitudinal axis X0, thepositional relationship between the filter apparatus 12 and othercomponents is described in detail below.

As shown in FIG. 4, the air flow generator 6 extends obliquely relativeto the longitudinal axis X0 of the dust cup assembly 1, specifically,the air flow generator 6 is provided with a second axis Y2, the air flowgenerator 6 is disposed obliquely relative to the longitudinal axis X0,and there is an acute angle between the second axis Y2 and thelongitudinal axis X0. In the preferred embodiments of the presentinvention, an angle between the longitudinal axis X0 and the first axisY2 ranges from 5 degrees to 30 degrees. The filter apparatus 13 alsoextends obliquely relative to the air flow generator 6. Specifically, anangle between the first axis Y1 and the second axis Y2 ranges from 60degrees to 85 degrees.

As shown in FIG. 4, since the filter apparatus 13 is disposed obliquely,if the air flow generator 6 is placed at the original angle, the lengthof an air flow channel between the filter apparatus 13 and the air flowgenerator 6 is prolonged. To reduce the channel length and enable theair flow separated by the filter apparatus 13 to quickly enter the airflow generator 6, the air flow generator 6 is also disposed obliquely.The air flow generator 6 extends obliquely upward toward the filter 136,so as to reduce the length of the air flow channel between the filterapparatus 13 and the air flow generator 6.

As shown in FIG. 3 and FIG. 4, the air flow generator 6 extendsobliquely upward, the air flow generator 6 may be considered to beplaced horizontally and extend obliquely upward, and an upwardinclination angle of the air flow generator 6 is related to theinclination angle of the filter apparatus 13. Considering from twoaspects, that is, an air channel between the filter apparatus 13 and theair flow generator 6 is the shortest and a volume of the entire machineis not affected, an appropriate inclination angle of the air flowgenerator 6 is selected. In other embodiments of the present invention,instead of being disposed obliquely, the air flow generator 6 is placedhorizontally. If the air flow generator 6 is placed vertically, theheight of the entire handheld vacuum cleaner 100 is increased. When theair flow generator 6 is placed horizontally, an increase in the heightof the entire handheld vacuum cleaner 100 can be avoided. As shown inFIG. 5, in the embodiments of the present invention, the batteryassembly 5 may be placed in a space defined after the air flow generator6 is disposed obliquely. In this way, the space is appropriatelyutilized, so as to further reduce the length of the entire handheldvacuum cleaner 100, thereby reducing the volume of the entire machine.

The air flow generator 6 includes a rotating shaft (not shown in thefigure) and a rotatable impeller (not shown in the figure) disposed onthe rotating shaft. When the air flow generator 6 is working, therotating shaft drives the impeller to rotate to generate strong suctionand pressure. Under the action of suction and pressure, an air flowflowing through the air flow generator 6 is discharged at a high speed,and an air flow at an air inlet end of the air flow generator 6 iscontinuously filled to the air flow generator 6, resulting in aninstantaneous vacuum inside the housing 3, so that an external dusty airflow can be drawn into the dust cup assembly 1 through the dust suctioninlet 12. When the handheld vacuum cleaner 200 is working, a dusty airflow entering from the dust suction inlet 10 first enters the filterapparatus 13 for filtration, and dust and dirt removed through filteringare kept in the cup body 11. Air filtered by the filter apparatus 13 isthen re-filtered by the filter 136 to filter out dust and moistureagain, and air re-filtered by the filter 136 flows to the air flowgenerator 6. The air can cool the air flow generator 6 in the process offlowing to the air flow generator 6, thereby prolonging the service lifeof the air flow generator 6. Next, the air is discharged from the airflow outlet 32 to the outside of the housing 3.

As shown in FIG. 4, in the embodiments in the accompanying drawings ofthe present invention, the filter 136 is located between the cyclone 132and the air flow generator 6. The cyclone 132 is disposed upstream ofthe filter 136, and the cyclone 132 pretreats dry and wet dusty airflows, so that only air flows with a relatively small of dust flowsthrough the filter 136, thereby avoiding blockage of the filter 136,prolonging the service life of the filter 136, and improving the dustremoval performance. In the preferred embodiments of the presentinvention, the filter 136 is a waterproof HEPA filter. Since thehandheld vacuum cleaner 100 in the present invention can be used as avacuum cleaner for use in both a wet scenario and a dry scenario, dustmay be dust with the properties of a liquid. With the waterprooffunction, moisture is prevented from entering the air flow generator 6,thereby protecting electrical devices from damage. In other embodiments,instead of being limited to a waterproof HEPA filter, the filter 136 maybe another filtering structure, for example, a multi-stage filteringstructure that is combined with or integrally formed with the filterapparatus 13 and provides two-stage filtering. Dust and impurities canbe adequately removed through multi-stage filtration. When the presentinvention is applied to wet treatment, for example, water absorption, inaddition to the waterproof design of the filter 136 and the liquidtreatment of the cyclone 132, the electrical devices such as the airflow generator 6 may also be waterproofed to further protect theelectrical devices, thereby eventually ensuring the working stabilityand safety of liquid treatment of the vacuum cleaner.

As shown in FIG. 1, the handle assembly 4 is provided with two endsextending from front to back, namely, a first end 41 and a second end42. The first end 41 is close to the cup body 11 and located above thecup body 11. The second end 42 is located behind the housing 11 andclose to the air flow generator 6. Because the air flow generator 6 isadjacent to the battery assembly 5, the second end 42 is also close tothe battery assembly 5 and located above the battery assembly 5. Thehandle assembly 4 is disposed to extend from front to back, so that whena user grips the handle to lift the machine, the user applies a forceproperly and use the machine comfortably. In addition, since the filterapparatus 13 is disposed obliquely in the presentembodiment, the handleassembly 4 is not designed to be D-shaped, thereby further reducing theheight of the entire handheld vacuum cleaner 100.

As shown in FIG. 1, in the handheld vacuum cleaner 100 in thisembodiment, the handle assembly 4 includes a horizontal gripping area 43and an oblique gripping area 44 connected to the horizontal grippingarea 43, and the horizontal gripping area 43 and the oblique grippingarea 44 form a V shape. The horizontal gripping area 43 is connected tothe first end 41, the oblique gripping area 44 is connected to thehorizontal gripping area at an obtuse angle, and the oblique grippingarea 44 is connected to the second end 42.

As shown in FIG. 10 and FIG. 11, when the handheld vacuum cleaner in thefirst embodiment of the present invention is working, the handheldvacuum cleaner may be connected to the extension pipe 200 and thecleaner head 300. The extension pipe 200 may be a rigid pipe, a flexiblepipe, a combination of a flexible pipe and a rigid pipe, or a telescopicpipe. In a specific work application, the user can select an accessoryaccording to an actual application scenario. The extension pipe 200 inFIG. 10 is a rigid pipe, and the extension pipe 200 in FIG. 11 is aflexible pipe.

As shown in FIG. 12, the present invention further discloses a stickvacuum cleaner 400 in the first embodiment. The stick vacuum cleaner 400includes the handheld vacuum cleaner 100, the extension pipe 200, andthe cleaner head 300 in the foregoing embodiment in which the filterapparatus is disposed obliquely, one end of the extension pipe 200 isconnected to the dust suction inlet of the handheld vacuum cleaner 100,and the other end of the extension pipe 200 is connected to the cleanerhead 300. The cleaner head 300 is provided with a suction passage (notshown in the figure) in communication with the inside of the extensionpipe 200, to allow dust to enter the extension pipe 200 through thesuction passage and then enter the handheld vacuum cleaner 100 along theextension pipe 200. The extension pipe 200 may be a rigid pipe, aflexible pipe, a combination of a flexible pipe and a rigid pipe or atelescopic pipe. In a specific work application, the user can select anaccessory according to an actual application scenario. The extensionpipe 200 in FIG. 12 is a rigid pipe.

In the stick vacuum cleaner 400 in the first embodiment of the presentinvention, when the handheld vacuum cleaner 100 does not require theextension pipe 200 to perform vacuuming, for example, when the handheldvacuum cleaner 100 requires another accessory such as a slit suctionhead or a mite suction head to perform vacuuming, the extension pipe 200may be detached from the dust suction inlet of the handheld vacuumcleaner 100, and an actually required accessory may be assembled to thedust suction inlet of the handheld vacuum cleaner 100. An end of theextension pipe 200 is directly detachably connected to the dust suctioninlet of the handheld vacuum cleaner 100. For example, the extensionpipe 200 may be mounted on the dust suction inlet or detached from thedust suction inlet by a quick removal buckle structure. Therefore, it isconvenient to disassemble and assemble the extension pipe 200.

The present embodiment discloses a dust bin 7 that is airtightlycombined with a dust suction apparatus, and the dust bin 7 includes adust chamber 71 and a dust inlet 72 that is in communication with thedust chamber 71 and used for receiving dust passing through the dustsuction apparatus.

The dust suction apparatus may be airtightly combined with the dust bin7 through shape matching. That is, the shapes of the dust suctionapparatus and the dust bin 7 match to implement sealing without asealing element. Another way of airtightly combining the dust suctionapparatus with the dust bin 7 may be elastic shape matching. That is, atleast one of the dust suction apparatus and the dust bin 7 is providedwith a sealing element, and the dust suction apparatus is airtightlyjoined to the dust bin 7 by the sealing element. Certainly, a separatesealing element may be disposed between the dust suction apparatus andthe dust bin 7, so that the dust suction apparatus can be airtightlyjoined to the dust bin 7. The separate sealing element is specifically afirst sealing member that is provided in the dust bin 7 and is used forimplementing the sealing performance of a joint between the dust outletand the dust inlet. As shown in FIG. 13 to FIG. 17, in an embodiment,the dust bin 7 is combined with a handheld vacuum cleaner. The handheldvacuum cleaner is usually provided with a dedicated dust outlet, and thedust outlet is located opposite and combined with the dust inlet 72. Thedust bin 7 includes a dust chamber 71, a dust inlet 72 joined to thehandheld vacuum cleaner, and a first sealing member 73 for implementingthe sealing between the handheld vacuum cleaner and the dust bin 7. Thefirst sealing member 73 is disposed at the dust inlet 72. When thehandheld vacuum cleaner is joined to the dust bin 7 and the dust bin 7works, the dust inlet 72 is in communication with the dust chamber 71,and the dust inlet 72 is opposite and in communication with the dustoutlet. The first sealing member 73 is disposed, so that after thevacuum cleaner and the dust bin 7 have been mounted, the sealingperformance of a dust collection environment can be ensured, and dustcan be prevented from flying out. In addition, after the dust bin 7 ismounted, the space of the dust bin 7 is in communication with the dustcollection space of the handheld vacuum cleaner, so that the sealingelement is disposed to ensure the sealing effect, thereby ensuring theinternal negative pressure and the cleaning efficiency.

The first sealing member 73 is combined with an outermost ring of thedust outlet to form sealing. It can be learned from the foregoingdescription of the handheld vacuum cleaner in the first embodiment thatthe handheld vacuum cleaner 100 further includes a second sealing memberfor implementing the sealing between the dust outlet and the dust cupcover. The second sealing member and the dust cup cover are located inthe first sealing member 73. That is, the first sealing member 73circumferentially surrounds the second sealing member and the dust cupcover. The dust bin 7 has an abutting portion for controlling the dustcup cover of the handheld vacuum cleaner to automatically open. Theabutting portion is located in the first sealing member 73.

In the presentembodiment, the separate dust bin 7 is disposed, so thatwhen the dust collection space in the handheld vacuum cleaner needs tobe increased, the handheld vacuum cleaner may be joined to the dust bin7, and the dust chamber 71 of the dust bin 7 may be utilized to increasethe dust collection space of the handheld vacuum cleaner. That is, afterthe dust bin 7 is mounted, the dust chamber 71 of the dust bin 7 may bedirectly used to collect dust. After the dust bin 7 is mounted on thehandheld vacuum cleaner, dust in the handheld vacuum cleaner may bedumped into the dust chamber 71. That is, when the handheld vacuumcleaner is working, the dust bin 7 may be used as a dust collectionelement. When the handheld vacuum cleaner is not working, the dust bin 7may be used as a dust collection space. The dust bin 7 has a simplestructure and is flexible to use.

When the handheld vacuum cleaner is working, the dust bin 7 is mountedin combination with the handheld vacuum cleaner. In this case, thehandle assembly 4 may be used as a handle assembly for a combinedstructure.

To ensure the sealing performance, the circumferential range of thefirst sealing member 73 is greater than or equal to the circumferentialrange of the dust outlet of the handheld vacuum cleaner. For example, ifthe dust outlet is circular, the radius of the first sealing member 73is greater than or equal to the radius of the dust outlet. If the dustoutlet is not circular, the structure of the first sealing member 73needs to correspond to the shape of the dust outlet, and the size of thefirst sealing member 73 is greater than or equal to the size of the dustoutlet. In this way, the sealing performance at the entire circumferencecan be ensured. Considering that there are often other structuraldesigns around the dust outlet, the structure of the first sealingmember 73 may be different from the shape of the dust outlet. However,the shape of the first sealing member 73 should surround the dust outletfrom the outside to ensure the sealing effect. The surrounding range maycover other structural designs around the dust outlet, for example, thelatching portion of the dust cup cover.

As shown in FIG. 13 and FIG. 17, the dust bin 7 includes a base portion74 located below and a top portion 75 located above. The base portion 74has the dust chamber 71. The top portion 75 has the dust inlet 72. Thebase portion 74 has a bottom surface 740 at the bottom and side surfaces741 that are connected to the bottom surface 740 and define the dustchamber 71 together with the bottom surface 740. There is a transparentwindow 77 on the side surface 741.

As shown in FIG. 13 and FIG. 17, in the first embodiment of the dust bin7 in the present invention, the dust bin 7 is a split structure. Thedust bin 7 includes the top portion 75 and the base portion 74 that arecombined with each other and a buckling structure 76 for fastening thetop portion 75 and the base portion 74. The base portion 74 has the dustchamber 71 and the transparent window 77 for monitoring the fillingstate of dust. The top portion 75 has the dust inlet 72 and the firstsealing member 73. The base portion 74 has the bottom surface 740 andthe side surfaces 741 that are connected to the bottom surface 740 anddefine the dust chamber 71 together with the bottom surface 740. Thetransparent window 77 is disposed on the side surface 741. There may bea plurality of transparent windows 77, and the transparent windows 77may be respectively disposed on different side surfaces 741.

As shown in FIG. 14 to FIG. 18, the side surface of the base portion 74is provided with a first buckling portion 743. The side surface of thetop portion 75 is provided with a second buckling portion 756. Thesecond buckling portion 756 has a first buckling surface 7561 and asecond buckling surface 7562 that are disposed opposite each other. Thefirst buckling portion 743 is combined with the second buckling portion756 to form the buckling structure 76. The first buckling portion 743 iscombined with the second buckling portion 756 to fasten the base portion74 to the top portion 75. In the embodiments shown in the accompanyingdrawings of the present invention, the first buckling portion 743 isdisposed on the base portion 74 and is a movable buckle. The secondbuckling portion 756 is disposed on the top portion 75 and is anon-movable member. The base portion 74 and the top portion 75 can befastened to each other in different combination states of the split dustbin 7.

As shown in FIG. 14 to FIG. 18, the base portion 74 has a main jointportion 742 in the circumferential direction. A main joint fasteningedge 7421 is formed on the main joint portion 742. The top portion 75 isprovided with a first joint portion 757 that is combined with the mainjoint portion 742 of the base portion 74 and a second joint portion 758located opposite the first joint portion 757. A first joint fasteningedge 759 is formed on the first joint portion 757. A second jointfastening edge 760 is formed on the second joint portion 758. There maybe a plurality of preferred embodiments in the embodiments of thepresent invention. That is, both lateral fastening and circumferentialfastening are not necessarily selected. One of lateral fastening andcircumferential fastening may be selected.

In other implementations of the present invention, the arrangementpositions of the first buckling portion 743 and the second bucklingportion 756 may be interchanged, as long as the distances between thecenter of the second buckling portion 756 and the joint portions in twostates are equal. In this way, the fastening can be implemented in bothmounting states. That is, in the embodiments in the accompanyingdrawings of the present invention, the distance between the firstbuckling surface 7561 of the second buckling portion 756 and the firstjoint portion 757 is equal to the distance between the second bucklingsurface 7562 of the second buckling portion 756 and the second jointportion 758. Since the distance between the first buckling portion 743and the joint portion is constant, the mutual fastening of the baseportion 74 and the top portion 75 in two states can be implemented aslong as it is ensured that varying distances are equal.

The mounting order of the dust bin 7 is that the top portion 75 and thebase portion 74 are first mounted together through the guidance of acircumferential structure, and the top portion 75 is then fastened tothe base portion 74 by the buckling structure 76. In this way, the dustbin 7 has a simple structure and is easy to mount.

In the dust bin 7 in the first embodiment, the main joint portion 742may be separately combined with the first joint portion 757 and thesecond joint portion 758. Two functions of the dust bin 7 areimplemented by using two combination modes. The two combination modesare described separately below. Different arrangement or combinationmodes between the dust bin and the dust suction apparatus enable thevacuum cleaner combination to switch between a working mode and atransport/storage mode.

As shown in FIG. 19 to FIG. 21, the first combination mode in which themain joint portion 742 is joined to the first joint portion 757. Themain joint fastening edge 7421 is combined with the first jointfastening edge 759 to fasten the base portion 74 and the top portion 75in the circumferential direction, and the first buckling portion 743 isbuckled with the first buckling surface 7561 to fasten the base portion74 and the top portion 75 on the side surface. The first combinationmode is a state in which the dust collection space of the handheldvacuum cleaner is increased. To enhance the sealing performance at thecircumference, a circumferential sealing ring 755 is disposed betweenthe base portion 74 and the top portion 75 in a circumferentialdirection in which the main joint portion 742 is joined to the firstjoint portion 757. In this way, based on the first sealing member 73,the circumferential sealing ring 755 further ensures the sealing effectafter the handheld vacuum cleaner is coupled to the dust bin 7.

As shown in FIG. 22, in the second combination mode. That is, when themain joint portion 742 is joined to the second joint portion 758, themain joint fastening edge 7421 is combined with the second jointfastening edge 760 to fasten the base portion 74 and the top portion 75in the circumferential direction, and the first buckling portion 743 isbuckled with the second buckling surface 7562 to fasten the base portion74 and the top portion 75 on the side surface. The second state is areceiving state in which the handheld vacuum cleaner is received. In thesecond combination mode, there are two ways to place the handheld vacuumcleaner. In the first way, the handheld vacuum cleaner is fastened onthe top portion 75 and received in a storage space defined by the baseportion 74 and the top portion 75. In the second way, the handheldvacuum cleaner is not fastened on the top portion 75, and is placed inthe base portion 74 and received in the storage space defined by thebase portion 74 and the top portion 75. In the first case, the dust cupcover of the handheld vacuum cleaner may be open or not. In the secondcase, when the handheld vacuum cleaner is placed, a handle of thehandheld vacuum cleaner may be close to the dust inlet 72, so that auser can grip the handle with the space provided by the dust inlet 72 tomove the device. Two cases of receiving the handheld vacuum cleaner aredescribed in detail below in the description of a handheld vacuumcleaner combination.

It can be learned from the description of the foregoing two states thata separate dust bin can be used for both fastening and receiving whencombined with the handheld vacuum cleaner, to prevent the handheldvacuum cleaner from shaking in the dust bin. Moreover, the dust bin isdisposed to be detachable, have a variety of assembly states and asimple structure, and be flexible to use, thereby increasing the dustcollection chamber of the handheld vacuum cleaner. In addition, the dustbin may be used to receive the handheld vacuum cleaner, thereby savingthe storage space and providing a pleasant storage environment.

As shown in FIG. 16, in a possible embodiment of the first embodiment ofthe dust bin 7 in the present invention, an accommodating cavity 751 foraccommodating a part of the handheld vacuum cleaner is formed on the topportion 75. The accommodating cavity 751 can partially accommodate thehandheld vacuum cleaner, so that a combination of the handheld vacuumcleaner and the dust bin 7 has a small size, thereby saving a space.

As shown in FIG. 18, a first fastening structure 752 and a secondfastening structure 753 may be respectively disposed at two ends of thetop portion 75. When the handheld vacuum cleaner is mounted in the dustbin 7, the first fastening structure 752 and the second fasteningstructure 753 are respectively buckled with the first positioning buckle20 and the second positioning buckle 21 to fasten the handheld vacuumcleaner to the dust bin 7. The positions of the first fasteningstructure 752 and the second fastening structure 753 may be adjusted, sothat the first fastening structure 752 and the second fasteningstructure 753 adapt to the handheld vacuum cleaners with differentsizes. Certainly, in other preferred embodiments of the presentinvention, other fastening structures may be disposed to fasten thehandheld vacuum cleaner to the dust bin 7, for example, the fastening ofan elastic band in the circumferential direction or the design of atension rope.

As shown in FIG. 17, in a possible embodiment of the first embodiment ofthe dust bin 7 in the present invention, the dust bin 7 may be providedwith an abutting portion 754. When the handheld vacuum cleaner iscoupled to the dust bin 7, the abutting portion 754 can assist inabutting against the latching portion of the dust cup cover of thehandheld vacuum cleaner, to enable the dust cup cover to automaticallyopen. Certainly, in other implementation plans, the abutting portion 754may be omitted, and the dust cup cover of the handheld vacuum cleanermay be manually opened. The abutting portion 754 is located in the firstsealing member 73.

In a possible embodiment of the first embodiment of the dust bin 7 inthe present invention, if the abutting portion 754 is disposed, aposition regulator (not shown in the figure) for adjusting the positionof the abutting portion 754 may further be disposed to provide theabutting portion 754 with at least two working positions, that is, afirst position applicable and a second position. When the abuttingportion 754 is in the first position, the abutting portion 754 abutsagainst the dust cup cover to control the dust cup cover to open. Whenthe abutting portion 754 is in the second position and the handheldvacuum cleaner is mounted in the dust bin 7, the abutting portion 754does not abut against the dust cup cover and the dust cup cover does notopen. The abutting portion 754 is disposed in such a way because thedust bin 7 has two application scenarios. In one scenario, the duststorage space of the handheld vacuum cleaner is increased. In the otherscenario, the handheld vacuum cleaner is received. When the dust bin 7is used to increase the dust storage space of the handheld vacuumcleaner, the abutting portion 754 needs to abut against the dust cupcover to enable the dust cup cover to open. However, when the dust bin 7is used to receive the handheld vacuum cleaner, sometimes it is notnecessary to open the dust cup cover to prevent residual dust in thehandheld vacuum cleaner from flying out. Therefore, a position regulatoris disposed to adjust the position of the abutting portion 754 accordingto an actual requirement, so that it can be flexibly chosen whether theabutting portion 754 needs to abut against the dust cup cover to enablethe dust cup cover to open. The position regulator may be a rotatingposition regulator or a sliding position regulator in the conventionalart. Details are not described herein again.

In a possible embodiment of the first embodiment of the dust bin 7 inthe present invention, when the abutting portion 754 is in the firstposition to abut against the dust cup cover 15 to enable the dust cupcover 15 to open, the dust cup cover 15 automatically opens outward atan angle ranging from 110 degrees to 190 degrees.

As shown in FIG. 23 and FIG. 24, a dust bin 7′ in a second embodiment isfurther provided in the present invention. The dust bin 7′ is anintegral structure. A difference between the second embodiment and thefirst embodiment is that, the dust bin 7′ has a whole structure insteadof a split structure. The dust bin 7′ in the second embodiment has thesame internal structure as the dust bin 7 in the first embodiment, andthe internal structure of the dust bin 7′ is disposed with reference tothat of the dust bin 7 in the first embodiment. Details are notdescribed herein again. In the preferred embodiments of the secondembodiment, since the dust bin 7′ is an integral structure, dust may bedumped from the dust inlet 72 in the first embodiment, or a top portion(not shown in the figure) for emptying debris easily may be separatelydisposed, facilitating in dumping dust collected in the dust bin 7′. Thetop portion is not shown in the accompanying drawings of the presentinvention, and is a conventional technical means. A person skilled inthe art can design the top portion according to an actual requirement ofa product.

As shown in FIG. 25 to FIG. 27, the present invention discloses ahandheld vacuum cleaner combination in a first embodiment. The handheldvacuum cleaner combination includes a dust bin 7 and a handheld vacuumcleaner 100. The handheld vacuum cleaner 100 is the foregoing handheldvacuum cleaner 100 in which the filter apparatus is disposed obliquely.The specific structures of the dust bin 7 and the handheld vacuumcleaner 100 in the first embodiment have been clearly described in theforegoing corresponding embodiment. Details are not described hereinagain. The joint relationship between the handheld vacuum cleaner 100and the dust bin 7 is described in detail below by using the handheldvacuum cleaner 100 in the first embodiment as an example. Asplit-structure dust bin 7 is combined with the handheld vacuum cleaner100 to increase a dust collection space of the handheld vacuum cleaner100 and accommodate the handheld vacuum cleaner 100. A handheld vacuumcleaner combination in a first embodiment has three states. The threestates are different from each other in the position of the handheldvacuum cleaner 100. The three states of the handheld vacuum cleanercombination in the first embodiment are described below in detail. Indifferent states, the handheld vacuum cleaner 100 has a working state inwhich a dust cup cover 15 is open and a non-working state in which thedust cup cover 15 is closed.

As shown in FIG. 25 to FIG. 27, a first state is the embodiment in whichthe dust collection space of the handheld vacuum cleaner 100 isincreased. The top portion 75 is located above the base portion 74. Thehandheld vacuum cleaner 100 is mounted on the top portion 75. The topportion 75 is fastened to the base portion 74 by the buckling structure76. A space of the base portion 74 is responsible for dust collection.In this case, the base portion 74 may be used to collect dust dumpedfrom the dust outlet 14 of the handheld vacuum cleaner 100, so as tocollect all the dust and dump the dust. After the handheld vacuumcleaner 100 is mounted in the dust bin 7, the dust inlet 72 is disposedopposite the dust outlet 14. The first sealing member 73 is mounted onthe top portion 75.

In the first state, when the main joint portion 742 is joined to thefirst joint portion 757, the main joint fastening edge 7421 is combinedwith the first joint fastening edge 759 to fasten the base portion 74and the top portion 75 in the circumferential direction, and the firstbuckling portion 743 is buckled with the first buckling surface 7561 tofasten the base portion 74 and the top portion 75 on the side surface.The first state is a state in which the dust collection space of thehandheld vacuum cleaner is increased. To enhance the sealing performanceat the circumference, a circumferential sealing ring 755 is disposedbetween the base portion 74 and the top portion 75 in a circumferentialdirection in which the main joint portion 742 is joined to the firstjoint portion 757. In this way, based on the first sealing member 73,the circumferential sealing ring 755 further ensures the sealing effectafter the handheld vacuum cleaner is coupled to the dust bin 7. Bothlateral fastening and circumferential fastening are described in thedescription of this state. This is only the description of a preferredembodiment of the present invention. In other embodiments, as describedabove, both lateral fastening and circumferential fastening are notnecessarily selected. One of the fastening methods may be selected.

In the first state, when the dust bin 7 is buckled with the handheldvacuum cleaner 100 and the abutting portion 53 abuts against and iscombined with the latching portion 16 to control the dust cup cover 15to open. The dust cup cover 15 is driven by a reset structure 20 toautomatically open outwards. The dust cup cover 15 automatically opensoutward at an angle ranging from 110 degrees to 190 degrees. In thiscase, the handheld vacuum cleaner 100 is working, and the dust bin 7 isused to increase the dust collection space.

In the first state, a method for mounting the handheld vacuum cleaner100 may be that one end is first buckled and the other end is thenbuckled through pressing. Certainly, two ends may be buckled at the sametime. As to when the abutting portion 53 abuts against the dust cupcover 15 to enable the dust cup cover 15 to open, in the preferredembodiments of the present invention, as soon as the handheld vacuumcleaner 100 is buckled with the dust bin 7 through pressing, theabutting portion 53 is triggered to abut against the dust cup cover 15to enable the dust cup cover 15 to open. Certainly, in otherembodiments, the abutting portion 53 may be triggered a while after orbefore the handheld vacuum cleaner 100 is buckled. Preferably, theabutting portion 53 is triggered as soon as or a while after thehandheld vacuum cleaner 100 is buckled. If the abutting portion 53 istriggered a while before the handheld vacuum cleaner 100 is buckled,dust in the handheld vacuum cleaner 100 tend to fly out through a gapformed due to incomplete combination.

In the first state, when the handheld vacuum cleaner 100 is working, thedust bin 7 is mounted in combination with the handheld vacuum cleaner.In this case, the handle assembly 4 may be used as a handle assembly fora combined structure.

As shown in FIG. 28 to FIG. 30, a second state is the first embodimentin which the handheld vacuum cleaner 100 is received. In this state, thehandheld vacuum cleaner 100 is fastened on the top portion 75. Comparedwith the first state, the top portion 75 is inverted to enable thehandheld vacuum cleaner 100 to be received in the space defined by thebase portion 74 and the top portion 75, thereby implementing thereceiving of the handheld vacuum cleaner 100.

In the second state, when the main joint portion 742 is joined to thesecond joint portion 758, the main joint fastening edge 7421 is combinedwith the second joint fastening edge 760 to fasten the base portion 74and the top portion 75 in the circumferential direction, and the firstbuckling portion 743 is buckled with the second buckling surface 7562 tofasten the base portion 74 and the top portion 75 on the side surface.In other embodiments, as described above, both lateral fastening andcircumferential fastening are not necessarily selected. One of lateralfastening and circumferential fastening may be selected.

In the second state, the handheld vacuum cleaner 100 is not working, thedust bin 7 is used for storage, but the abutting portion 53 still abutsagainst and is combined with the latching portion 16 to control the dustcup cover 15 to open. The dust cup cover 15 is driven by a resetstructure 20 to automatically open outwards. The dust cup cover 15automatically opens outward at an angle ranging from 110 degrees to 190degrees. Certainly, for a better receiving effect, the positionregulator as described above may be added in the preferred embodiments,to perform adjustment to control whether the dust cup cover 15 is open.In the preferred embodiments of the present invention, when the handheldvacuum cleaner 100 is not working, the dust cup cover 15 is not open.

In the second state, a method for mounting the handheld vacuum cleaner100 may be that, one end is first buckled, and the other end is thenbuckled through pressing. Certainly, two ends may be buckled at the sametime. As to when the abutting portion 53 abuts against the dust cupcover 15 to enable the dust cup cover 15 to open, in the preferredembodiments of the present invention, when the handheld vacuum cleaner100 is buckled with the dust bin 7 through pressing, the abuttingportion 53 is triggered to abut against the dust cup cover 15 to enablethe dust cup cover 15 to open. Certainly, in other embodiments, theabutting portion 53 may be triggered a while after or before thehandheld vacuum cleaner 100 is buckled. Preferably, the abutting portion53 is triggered as soon as or a while after the handheld vacuum cleaner100 is buckled. If the abutting portion 53 is triggered a while beforethe handheld vacuum cleaner 100 is buckled, dust in the handheld vacuumcleaner 100 tend to fly out through a gap formed due to incompletecombination.

As shown in FIG. 31 and FIG. 32, a third state is the second embodimentin which the handheld vacuum cleaner 100 is received. In this state, thehandheld vacuum cleaner 100 is not fastened on the top portion 75, butis directly placed in the base portion 74 to enable the handheld vacuumcleaner 100 to be received in the space defined by the base portion 74and the top portion 75, thereby implementing the receiving of thehandheld vacuum cleaner 100. If the space of the base portion 74 isenough to receive the handheld vacuum cleaner 100, compared with thefirst state, the top portion 75 may be not inverted as in the secondstate. Certainly, if the top portion 75 is inverted as in the secondstate, the formed space is relatively large. In the case of thereceiving mode in the third state, a user may freely select, accordingto an actual case, the way in which the top portion 75 is joined to thebase portion 74. In this state, after the handheld vacuum cleaner 100 isplaced in the base portion 74, the handle assembly 4 of the handheldvacuum cleaner 100 is just located on the dust inlet 72, so that a usercan grip the handheld vacuum cleaner 100 with the space of the dustinlet 72, to move the handheld vacuum cleaner combination. That is, inthe third state, the handheld vacuum cleaner 100 is working, the dustbin 7 is mounted in combination with the handheld vacuum cleaner. Inthis case, the handle assembly 4 may be used as a handle assembly for acombined structure.

In the third state, the handheld vacuum cleaner 100 is not working, andthe dust bin 7 is used for storage. In this case, the handheld vacuumcleaner 100 is just placed in the base portion 74 and is not in contactwith the abutting portion 53, so that the dust cup cover 15 is not open.In the preferred embodiments of the present invention, when the handheldvacuum cleaner 100 is not working, the dust cup cover 15 is not open.

As shown in FIG. 33 and FIG. 34, the present invention discloses ahandheld vacuum cleaner combination in a second embodiment. A differencebetween the handheld vacuum cleaner combination in the second embodimentand the handheld vacuum cleaner combination in the first embodiment isthat a dust bin is the dust bin 7′ with an integral structure, and otherstructures are the same as those of the handheld vacuum cleanercombination in the first embodiment. That is, in this embodiment, thefilter apparatus is disposed obliquely. Since the dust bin 7′ is anintegral structure, the handheld vacuum cleaner combination in thisembodiment is mainly used to increase the dust collection space of thehandheld vacuum cleaner.

FIG. 35 and FIG. 36 are respectively a schematic diagram of a workingstate of the vacuum cleaner combination according to the firstembodiment of the present invention and a schematic diagram of a workingstate of the vacuum cleaner combination according to the secondembodiment of the present invention. In this case, the dust bin is usedto increase the dust collection space, and the handheld vacuum cleaneris working. The handheld vacuum cleaner combination is connected to theextension pipe 200 and the cleaner head 300. One end of the extensionpipe 200 is connected to the dust suction inlet of the handheld vacuumcleaner 100. The other end of the extension pipe 200 is connected to thecleaner head 300. The cleaner head 300 is provided with a suctionpassage (not shown in the figure) in communication with the inside ofthe extension pipe 200, to allow dust to enter the extension pipe 200through the suction passage and then enter the handheld vacuum cleaner100 along the extension pipe 200. The extension pipe 200 may be a rigidpipe, a flexible pipe, a combination of a flexible pipe and a rigid pipeor a telescopic pipe. In a specific work application, the user canselect an accessory according to an actual application scenario. Theextension pipe 200 in FIG. 12 is a rigid pipe.

As shown in FIG. 37 and FIG. 38, the present invention discloses ahandheld vacuum cleaner combination in a third embodiment. The structureof the dust bin 7 of the handheld vacuum cleaner combination in thesecond embodiment is the same as that of the handheld vacuum cleanercombination in the first embodiment. That is, the dust bin is theforegoing dust bin with a split structure. A difference between thehandheld vacuum cleaner combination in the third embodiment and thehandheld vacuum cleaner combination in the first embodiment is that afilter apparatus of a handheld vacuum cleaner 500 is not disposedobliquely.

As shown in FIG. 39, the present invention discloses a handheld vacuumcleaner combination in a fourth embodiment. Differences between thehandheld vacuum cleaner combination in the fourth embodiment and thehandheld vacuum cleaner combination in the third embodiment are that adust bin is the dust bin 7′, that is, the dust bin is the foregoing dustbin with an integral structure, and the filter apparatus is not disposedobliquely. Since the dust bin 7′ is an integral structure, the handheldvacuum cleaner combination in this embodiment is mainly used to increasethe dust collection space of the handheld vacuum cleaner.

As shown in FIG. 40 and FIG. 41, the present invention discloses ahandheld vacuum cleaner combination in a fifth embodiment. Differencesbetween the handheld vacuum cleaner combination in the fifth embodimentand the handheld vacuum cleaner combination in the first embodiment arethat there is no cyclonic separation structure inside the handheldvacuum cleaner and only a filter is disposed in the handheld vacuumcleaner. That is, in this embodiment, the dust bin is the foregoing dustbin with a split structure, and the filter apparatus is not a cyclonicseparation structure but instead is only an ordinary filteringstructure, for example, a HEPA filter.

As shown in FIG. 42, the present invention discloses a handheld vacuumcleaner combination in a sixth embodiment. A difference between thehandheld vacuum cleaner combination in the sixth embodiment and thehandheld vacuum cleaner combination in the fifth embodiment is that adust bin is the dust bin 7′. That is, in this embodiment, the dust binis the foregoing dust bin with an integral structure, and the filterapparatus is not a cyclonic separation structure but instead is only anordinary filtering structure, for example, a HEPA filter. The handheldvacuum cleaner combination in this embodiment is mainly used to increasethe dust collection space of the handheld vacuum cleaner.

As shown in FIG. 43, the present invention further discloses a stickvacuum cleaner 700 in a second embodiment. A difference between thestick vacuum cleaner 700 in the second embodiment and the stick vacuumcleaner 400 in the first embodiment is that the structure of the dustbin 7 is increased. The dust bin 7 is a split structure. The stickvacuum cleaner 700 in the second embodiment includes the handheld vacuumcleaner combination in the foregoing first embodiment. A handheld vacuumcleaner is the handheld vacuum cleaner 100 in the embodiment in whichthe filter apparatus is disposed obliquely.

As shown in FIG. 44, the present invention further discloses a stickvacuum cleaner 800 in a third embodiment. A difference between the stickvacuum cleaner 800 in the third embodiment and the stick vacuum cleaner700 in the second embodiment is that a dust bin is the dust bin 7′, thatis, the dust bin 7′ with an integral structure. The stick vacuum cleaner800 in the third embodiment includes the handheld vacuum cleanercombination in the foregoing second embodiment. A handheld vacuumcleaner is the handheld vacuum cleaner 100 in the embodiment in whichthe filter apparatus is disposed obliquely.

As shown in FIG. 45, the present invention further discloses a stickvacuum cleaner 900 in a fourth embodiment. A difference between thestick vacuum cleaner 900 in the fourth embodiment and the stick vacuumcleaner 700 in the second embodiment is that a filter apparatus is notdisposed obliquely. The stick vacuum cleaner 900 in the fourthembodiment includes the handheld vacuum cleaner combination in theforegoing third embodiment. A handheld vacuum cleaner is the handheldvacuum cleaner 500 in the embodiment in which the filter apparatus isnot disposed obliquely. A dust bin is the dust bin 7 with a splitstructure.

As shown in FIG. 46, the present invention further discloses a stickvacuum cleaner 1000 in a fifth embodiment. A difference between thestick vacuum cleaner 1000 in the fifth embodiment and the stick vacuumcleaner 900 in the fourth embodiment is that a dust bin is the dust bin7′, that is, the dust bin 7′ with an integral structure. The filterapparatus is not disposed obliquely, and the stick vacuum cleaner 1000in the fifth embodiment includes the handheld vacuum cleaner combinationin the foregoing fourth embodiment. A handheld vacuum cleaner is thehandheld vacuum cleaner 500 in the embodiment in which the filterapparatus is not disposed obliquely.

As shown in FIG. 47, the present invention further discloses a stickvacuum cleaner 2000 in a sixth embodiment. A difference between thestick vacuum cleaner 2000 in the sixth embodiment and the stick vacuumcleaner 900 in the fourth embodiment is that there is no cyclonicseparation structure, and only a filtering structure, for example, aHEPA filter or another filtering structure with a simple filteringfunction, is disposed. The stick vacuum cleaner 2000 in the sixthembodiment includes the handheld vacuum cleaner combination in theforegoing fifth embodiment. A handheld vacuum cleaner is a handheldvacuum cleaner 600 in which a filter apparatus is an ordinary filterapparatus. A dust bin is the dust bin 7 with a split structure.

As shown in FIG. 48, the present invention further discloses a stickvacuum cleaner 3000 in a seventh embodiment. A difference between thestick vacuum cleaner 3000 in the seventh embodiment and the stick vacuumcleaner 2000 in the sixth embodiment is that a dust bin is the dust bin7′, that is, the dust bin 7′ with an integral structure. There is nocyclonic separation structure, and only a filtering structure, forexample, a HEPA filter or another filtering structure with a simplefiltering function, is disposed. The stick vacuum cleaner 3000 in theseventh embodiment includes the handheld vacuum cleaner combination inthe foregoing sixth embodiment. The handheld vacuum cleaner is thehandheld vacuum cleaner 600 in which the filter apparatus is an ordinaryfilter apparatus.

It needs to be noted that, in all the embodiments of the presentinvention, the direction “front” can be understood as a direction of thedust suction inlet of the handheld vacuum cleaner during actual use, andan opposite direction of “front” is defined as “rear”. The direction“up” can be understood as a direction in which the dust outlet of thehandheld vacuum cleaner is open during actual use, and an oppositedirection of “above” is defined as “down”.

As shown in FIG. 53, the handheld vacuum cleaner or the handheld vacuumcleaner combination or the stick vacuum cleaner in all the foregoingembodiments of the present invention is a vacuum cleaner for use in botha wet scenario and a dry scenario. That is, the vacuum cleaner can suckliquids such as water, and waterproof filters or other waterproofstructures are disposed in the handheld vacuum cleaner, therebypreventing moisture from directly contacting electrical parts, toimplement the use of the vacuum cleaner in both a wet scenario and a dryscenario.

In the handheld vacuum cleaner combination in all the foregoingembodiments of the present invention, the handheld vacuum cleaner has aworking state in which the dust cup cover is open and a non-workingstate in which the dust cup cover is closed. That is, when the dust binis used to collect dust, the handheld vacuum cleaner is in the workingstate, and the dust cup cover is open. When the dust bin is used forstorage, the handheld vacuum cleaner is in the non-working state, andthe dust cup cover is not open in the preferred embodiments, so as toprevent residual dust in the cup body from flying out during storage.Certainly, in other non-preferred embodiments, when the handheld vacuumcleaner is in the non-working state, the dust cup cover may be open. Inthe foregoing embodiments of the present invention, the positionregulator is mainly used to perform adjustment during storage to keepthe dust cup cover closed.

The handheld vacuum cleaner or the handheld vacuum cleaner combinationor the stick vacuum cleaner in all the foregoing embodiments of thepresent invention includes the filter apparatus. When the filterapparatus is a cyclonic separation structure, the cyclonic separationstructure may be a one-stage cyclone or a multi-stage cyclone. In thesolution in which the handheld vacuum cleaner uses the cyclonicseparation and that is shown in the accompanying drawings of the presentinvention, the cyclonic separation structure is a one-stage cyclonicseparation structure. In other embodiments of the present invention thatare not shown in the accompanying drawings, a multi-stage cyclonicseparation structure may be used.

As shown in FIG. 49 to FIG. 52, the horizontal gripping area 43 and theoblique gripping area 44 are disposed in the handle assembly 4,providing two gripping methods in different use scenarios of a separatehandheld vacuum cleaner and a handheld stick vacuum cleaner. Such ahuman-friendly design provides excellent user experience. Specifically,when a user needs to use the handheld vacuum cleaner 100 for vacuumingin the horizontal direction, the horizontal gripping area 43 is closerto the center of gravity of the entire machine, so that the user cangrip the horizontal gripping area 43 to reduce the force to be applied.When the user needs to tilt the handheld vacuum cleaner 100 forcleaning, the center of gravity of the handheld vacuum cleaner 100changes. If the center of gravity changes slightly, the user may freelychoose the horizontal gripping area 43 or the oblique gripping area 44because approximately the same forces are applied. However, if the stickvacuum cleaner is working, the center of gravity changes clearly. Inthis case, if the user grips the oblique gripping area 44, a small forceis applied, and a direction of the oblique gripping area 44 is directlyopposite the direction of force application, so that this is a betterchoice for the working state and is more convenient. A major factor tobe considered in choosing a gripping area to be held in the presentinvention is the position of the center of gravity of the entiremachine. If the user chooses to grip a gripping area closer to thecenter of gravity, the user needs to apply a smaller force. For example,if the center of gravity is closer to the horizontal gripping area 43,the user can choose to grip the horizontal gripping area 43. If thecenter of gravity is closer to the oblique gripping area 44, the usercan choose to grip the oblique gripping area 44.

As shown in FIG. 12 and FIG. 43 to FIG. 52, in the stick vacuum cleanerin all the foregoing embodiments in the present invention, the handheldvacuum cleaner in the stick vacuum cleaner may be directly connected tothe extension pipe 200 and the cleaner head 300 during actual vacuuming.One end of the extension pipe 200 is connected to the dust suction inletof the handheld vacuum cleaner. The other end of the extension pipe 200is connected to the cleaner head 300. The cleaner head 300 is providedwith a suction passage (not shown in the figure) in communication withthe inside of the extension pipe 200, to allow dust to enter theextension pipe 200 through the suction passage and then enter thehandheld vacuum cleaner along the extension pipe 200. That is, when thehandheld vacuum cleaner requires the extension pipe 200 to performvacuuming, the extension pipe 200 may be assembled to the dust suctioninlet of the handheld vacuum cleaner. When the handheld vacuum cleanerdoes not require the extension pipe 200 to perform vacuuming, forexample, when the handheld vacuum cleaner requires another accessorysuch as a slit suction head or a mite suction head to perform vacuuming,the extension pipe 200 may be detached from the dust suction inlet ofthe handheld vacuum cleaner, and an actually required accessory may beassembled to the dust suction inlet of the handheld vacuum cleaner. Anend of the extension pipe 200 is directly detachably connected to thedust suction inlet of the handheld vacuum cleaner. For example, theextension pipe 200 may be mounted on the dust suction inlet or detachedfrom the dust suction inlet by a quick removal buckle structure.Therefore, it is convenient to disassemble and assemble the extensionpipe 200.

As shown in FIG. 54 to FIG. 67, the present invention further providesseveral other handheld vacuum cleaners with new structural layouts. Inthe handheld vacuum cleaners with new structural layouts, a motorassembly is located between a dust suction inlet and a dust cupassembly. The handheld vacuum cleaners with new structural layouts inthe present invention are described below in detail with reference tospecific accompanying drawings.

FIG. 54 to FIG. 59 show a handheld vacuum cleaner 101 in a secondembodiment, including a housing 1010, a dust cup assembly 1011, a handleassembly 1024 for gripping, a battery assembly 1027 disposed below thehandle assembly 1024 and configured to supply electricity to thehandheld vacuum cleaner 101, a motor assembly 1029 configure to supplypower to the handheld vacuum cleaner 101, and a dust suction inlet 1030.The dust suction inlet 1030 may be disposed on the housing 1010. Thedust cup assembly 1011 may be detachably connected to the housing 1010.Specifically, the “detachably connected” is a buckle connection, athreaded connection, magnetic attraction or another connection manner.In an embodiment, the dust cup assembly 1011 and the housing 1010 are ina threaded connection to facilitate cleaning by a user. The batteryassembly 1027 is disposed in the rear of the handheld vacuum cleaner101. The motor assembly 1029 is configured to generate a negativesuction pressure. The motor assembly 1029 is disposed in the front ofthe handheld vacuum cleaner 100. The dust suction inlet 1030 is incommunication with the dust cup assembly 1011. The motor assembly 1029is located between the dust suction inlet 1030 and the dust cup assembly1011. When the distance between the motor assembly 1029 and the dustsuction inlet 1030 decreases, at the same power, the suction force ofthe dust suction inlet 1030 increases. The motor assembly 1029 isdisposed in the front of the handheld vacuum cleaner 100 and the batteryassembly 1027 is disposed in the rear of the handheld vacuum cleaner100, so that the dust cup assembly 1011 is located between the motorassembly 1029 and the battery assembly 1027, so that the structure iscompact and the center of gravity is more coordinated.

As shown in FIG. 55 to FIG. 58, the dust cup assembly 1011 includes acup body 1012, a cyclone separator 1014 disposed inside the cup body1012, and a filter 1018 re-separating the airflow separated by thecyclone separator 1014. The cyclone separator 1014 circumferentiallysurrounds at least a part of the filter 1018. The cyclone separator 1014is configured to perform cyclonic separation on air entering the housing1010. The filter 1018 is located downstream of the cyclone separator1014 and is configured to re-filter the air obtained after cyclonicseparation of the cyclone separator 1014. The battery assembly 1027 andthe motor assembly 1029 are respectively located on two sides of the cupbody 1012. The battery assembly 1027 is located on a side, away from thedust suction inlet 1030, of the cup body 1012. The cup body 1012 isprovided with an air outlet end. The motor assembly 1029 is disposed ona side adjacent to the air outlet end. The cup body 1012 is providedwith a dust outlet located on a dust-cup lower surface 1019 andconfigured to dump dust collected in the cup body. The battery assembly1027 is located on a side, near the dust outlet, of the cup body 1012.

As shown in FIG. 54, the cup body 1012 has a longitudinal axis Y-Yextending in a length direction. The dust suction inlet 1030 has an airinlet axis X-X. The cup body 1012 is diagonally disposed relative to thedust suction inlet 1030. An angle ß between the longitudinal axis Y-Yand the air inlet axis X-X is an acute angle. In an embodiment, theangle ß between the longitudinal axis Y-Y and the air inlet axis X-X isin a range of 30° to 60°.

As shown in FIG. 54, from another angle, the cup body 1012 has thelongitudinal axis Y-Y extending in a length direction. The motorassembly 1029 has a motor axis. The motor axis is parallel to the airinlet axis X-X. In an embodiment, the motor axis and the air inlet axisX-X coincide with each other. The cup body 1012 is diagonally disposedrelative to the motor assembly 1029. An angle between the longitudinalaxis Y-Y and the motor axis is an acute angle. In an embodiment, theangle between the longitudinal axis Y-Y and the motor axis is in a rangeof 30° to 60°. The cup body 1012 is diagonally disposed, so that theshape is more harmonious and pleasant, and an air channel between theair outlet end of the cup body 1012 and the motor assembly 1029 isshortened, to enable the airflow to reach the motor assembly 1029quickly for discharge.

As shown in FIG. 54, the handheld vacuum cleaner 101 includes aflow-directing structure 1031. The flow-directing structure 1031connects the dust suction inlet 1030 and the cup body 1012 to guide thedusty airflow into the cup body 1012. In an embodiment, theflow-directing structure 1031 is located below the dust suction inlet1030. The motor assembly 1029 is located above the flow-directingstructure 1031. Certainly, in another embodiment, the flow-directingstructure 1031 may be disposed on an adjacent side of the motor assembly1029. The flow-directing structure 1031 may not protrude from the motorassembly 1029 in the vertical direction. From another angle, theflow-directing structure 1031 may be located on an adjacent side of thedust suction inlet 1030. The flow-directing structure 1031 may notprotrude through the dust suction inlet 1030 in the vertical direction.

As shown in FIG. 54, the handheld vacuum cleaner 101 includes a cleanairflow outlet located on an adjacent side of the motor assembly 1029.The clean airflow outlet is disposed toward a side. The clean airflowoutlet is disposed on the side, so that the airflow is prevented fromflowing toward an operator, thereby improving user experience. In anembodiment, the clean airflow outlet may be alternatively disposed atthe top, that is, the clean airflow flows upward from the clean airflowoutlet.

As shown in FIG. 54, the cup body 1012 has the longitudinal axis Y-Yextending in a length direction. The cyclone separator 1014 has aseparation axis. The longitudinal axis is set parallel to the separationaxis. In this embodiment, the longitudinal axis coincides with theseparation axis. The cyclone separator 1014 is diagonally disposedrelative to the dust suction inlet. An angle between the separation axisand the air inlet axis X-X is an acute angle. In an embodiment, theangle between the separation axis and the air inlet axis X-X is in arange of 30° to 60°.

As shown in FIG. 54, from another angle, the motor assembly 1029 has themotor axis. The motor axis is parallel to the air inlet axis X-X. In anembodiment, the motor axis and the air inlet axis X-X coincide with eachother. The cyclone separator 1014 is diagonally disposed relative to themotor assembly 1029. An angle between the separation axis and the motoraxis is an acute angle. The angle between the separation axis and themotor axis is in a range of 30° to 60°.

As shown in FIG. 54, the handle assembly 1042 is used for gripping. Thehandle assembly 1024 includes a first gripping area 1025 and a secondgripping area 1026. Gripping directions of the first gripping area 1025and the second gripping area 1026 are different. An angle between thefirst gripping area 1025 and the second gripping area 1026 is from 90°to 135°. Two gripping areas are set, so that the user can selectdifferent gripping manners according to different force conditions indifferent use scenarios. With flexible selection, a force isappropriately applied and the use is comfortable when the handle isgripped to lift the machine. The first gripping area 1025 is near themotor assembly 1029. The first gripping area 1025 is located above ofthe cup body 1012. The second gripping area 1026 extends in the lengthdirection of the cup body 1012. The second gripping area 1026 and themotor assembly 1029 are respectively located on the two sides of the cupbody 1012. The second gripping area 1026 is located on the side, awayfrom the dust suction inlet 1030, of the cup body 1012. The batteryassembly 1027 is located below and mounted adjacent to the secondgripping area 1026. The dust suction inlet 1030 is disposed opposite tothe second gripping area 1026 and is located on the other side of thedust cup assembly 1011.

From another angle, as shown in FIG. 54, the handle assembly 1024 isprovided with two end portions, namely, a first end portion 1032 and asecond end portion 1033. The first end portion 1032 is connected to themotor assembly 1029 and is located above the cup body 1012. The secondend portion 1033 is connected to the battery assembly 1027 and islocated above the battery assembly 1027.

As shown in FIG. 54, in an embodiment, the first gripping area 1025 andthe second gripping area 1026 are isolated from each other. Certainly,in another embodiment, as shown in FIG. 60 and FIG. 61, the firstgripping area 1025 and the second gripping area 1026 are incommunication with each other.

As shown in FIG. 54, the battery assembly 1027 has a battery lowersurface 1028. The cup body 1012 has a dust-cup lower surface 1019. Thebattery lower surface 1028 and the dust-cup lower surface 1019 areparallel to each other. In an embodiment, the battery lower surface 1028and the dust-cup lower surface 1019 are coplanar. Certainly, in anotherembodiment, the battery lower surface 1028 and the dust-cup lowersurface 1019 are not parallel or not coplanar.

As shown in FIG. 54, the cup body 1012 is diagonally disposed relativeto the dust suction inlet 1030. After the cup body 1012 is tilted, thecup body 1012 has a first high point 1020 above and a first low point1021 below. The cup body 1012 is tilted in a direction away from thedust suction inlet 1030. The first high point 1020 is farther away fromthe dust suction inlet 1030 than the first low point 1021.

As shown in FIG. 55, FIG. 56, and FIG. 58, in an embodiment, the filter1018 is located inside the cyclone separator 1014. The cyclone separator1014 circumferentially surrounds at least a part of the filter 1018. Thecyclone separator 1014 is provided with a main body 1015 and a pluralityof airflow through holes 1016 provided on the main body 1015. Afterrotating around the main body 1015, the dusty airflow enters the cycloneseparator 1014 through the airflow through holes 1016 and is re-filteredthrough the internal filter 1018. The filter 1018 is located between thecyclone separator 1014 and the motor assembly 1029. The cycloneseparator 1014 is disposed upstream of the filter 1018 to pretreat dryand wet dusty airflows, so that only the airflow with a small amount ofdust flows through the filter 1018, so that the filter 1018 is preventedfrom being blocked, the service life of the filter 1018 is prolonged,and the dust removal performance is improved.

In one of the embodiments, the cyclone separator 1014 is provided with aflow-guiding structure 1017 disposed below the main body 1015 andconfigured to guide the airflow. The flow-guiding structure 1017includes a plurality of guiding bars. The guiding bars are diagonallyarranged, and an arrangement direction is the same as a direction inwhich the airflow rotates around the cyclone separator 1014. Theplurality of guiding bars are arranged in a circumferential direction ofthe bottom of the main body 1015. There is a gap between adjacentguiding bars, and the gap allows the air obtained after cyclonicseparation to enter the main body 1015. The guiding bar can reduce thespeed at which the air obtained after cyclonic separation enters themain body 1015. In addition, the guiding bar can adsorb some dustparticles, to prevent the air obtained after cyclonic separation fromstirring the dust particles obtained after cyclonic separation again toenter the main body 1015. In this way, some large dust particles in thedusty airflow entering the cyclone separator 1014 from the bottom of thecup body 1012 are prevented by the guiding bar from entering the cycloneseparator 1014, thereby reducing an amount of dust entering the cycloneseparator 1014, effectively improving the dust and air separationeffect, and preventing the filter 1018 from being blocked.

The main body 1015 is configured to accommodate a part of the filter1018. Specifically, the main body 1015 may have a frustum shape, acolumnar shape or another shape capable of accommodating a part of thefilter. In an embodiment, the main body 1015 has a frustum shape.

The cyclone separator 1014 is detachably connected to the filter 1018.Specifically, the “detachably connected” is a buckle connection,magnetic attraction or another connection manner. In an embodiment, thecyclone separator 1014 and the filter 1018 are in a buckle connection,to facilitate detachment of the cyclone separator 1014 from the filter1018, thereby facilitating cleaning.

An air guiding portion 431 is convexly disposed on a circumferentialside of the main body 1015, and an air guiding groove 432 is opened. Theair guiding groove 432 extends spirally in the circumferential directionof the main body 1015. A bottom surface of the air guiding portion 431is provided with an air guiding section 433. The air guiding section 433tilts spirally relative to the central axis of the main body 1015. Theair guiding portion 431 enables the air to enter in the form of acyclone and performs cyclonic separation. The spiral extension controlsan air entry direction, so that the dust obtained after the cyclonicseparation gathers at the bottom.

The filter 1018 is also a hollow cone that matches the cyclone separator1014 and whose outer diameter decreases toward the bottom of the cupbody 1012. An airflow outlet channel 1341 in communication with themotor assembly 1029 is formed axially inside the filter 1018. Theairflow entering the cyclone separator 1014 re-rotates around thecone-shaped filter 1018 under the effect of the negative suctionpressure, to be re-filtered to flow upward to the motor assembly 1029for discharge.

In an embodiment, the filter 1018 is disposed in the cyclone separator1014. The filter 1018 has a columnar shape or a table shape.Specifically, the filter 1018 may have a columnar shape, a round tableshape, a prismatic shape or another shape that can be disposed in thecyclone separator 1014. In an embodiment, the filter 1018 has a roundtable shape.

The filter 1018 filters dust. Specifically, the material of the filter1018 includes paper, cloth, waterproof hypalon, or another filtermaterial. In an embodiment, the material of the filter 1018 iswaterproof hypalon. The material of the filter 1018 is waterproofhypalon, so that the vacuum cleaner has both a wet use and a dry use. Inan embodiment, the filter 1018 is columnar, and is surrounded bylaminated waterproof hypalon to form a hollow columnar shape. A foldwidth is from 2 mm to 20 mm, and the fold width is a width of thelaminated part of the waterproof hypalon; and/or, a lateral area of thecolumn of the filter 1018 is from 15,000 square millimeters to 20,000square millimeters; and/or, an unfolded area of the filter 1018 is from80,000 square millimeters to 120,000 square millimeters. Preferably, thefold width is 10 mm.

The material of the filter 1018 is waterproof hypalon. The handheldvacuum cleaner 105 may be used as a vacuum cleaner with both a wet useand a dry use. Therefore, dust may be dust with liquid property, andwith the waterproof function, moisture is prevented from entering themotor assembly 1029 to protect electrical elements from damage. Inanother embodiment, the material of the filter 1018 is not limited towaterproof hypalon, and the filter 1018 may be another filter structure,for example, a multistage filter structure having a secondary filteringeffect that is combined with the cyclone separator 1014 or integrallydisposed with the cyclone separator 1014. The dust may be separatedcompletely in a manner of multistage filtering. The present invention isapplicable to wet treatment, for example, water suction. Therefore, inaddition to a waterproof design of the filter 1018 or liquid treatmentof the cyclone separator 1014, the electrical elements such as the motorassembly 1029 may be designed to be waterproof to further protect theelectrical elements, thereby eventually ensuring working stability andsafety of the liquid treatment of the handheld vacuum cleaner 105.

As shown in FIG. 57, in an embodiment, the filter 1018 is waterproofhypalon. The handheld vacuum cleaner 101 may be used as a vacuum cleanerfor a wet use and a dry use. Therefore, dust may be liquid dust, andthrough the waterproof function, moisture is prevented from entering themotor assembly 1029 and damaging the electrical elements. In anotherembodiment, the material of the filter 1018 is not limited to waterproofhypalon, and the filter 1018 may be another filter structure, forexample, a multistage filter structure having a secondary filteringeffect that is combined with the cyclone separator 1014 or integrallydisposed with the cyclone separator 1014. The dust may be separatedcompletely in a manner of multistage filtering. The present invention isapplicable to wet treatment, for example, water suction. Therefore, inaddition to a waterproof design of the filter 1018 or liquid treatmentof the cyclone separator 1014, the electrical elements such as the motorassembly 1029 may be designed to be waterproof to further protect theelectrical elements, thereby eventually ensuring working stability andsafety of the liquid treatment of the handheld vacuum cleaner.

As shown in FIG. 58, in an embodiment, the cyclone separator 1014 is afirst-stage cyclone structure. The dusty air entering the main body 1015may rotate around the main body 1015 to centrifugally remove the dust,thereby improving the dust removal effect. In another embodiment, thecyclone separator 1014 may be a multistage cyclone structure, that is, acyclone cavity used for cyclonic separation includes multistage cyclonecavities in sequential communication in the direction of the airflow.Therefore, the dusty airflow entering the main body 1015 maysequentially pass through the multistage cyclone cavities to undergorepeated dust and air separation, thereby improving the dust removaleffect.

As shown in FIG. 58, the cyclone separator 1014 is provided with aflow-guiding structure 1017 disposed below the main body 1015 andconfigured to guide the airflow. The flow-guiding structure includes aplurality of guiding bars. The guiding bars are diagonally arranged, andan arrangement direction is the same as the airflow rotating direction.In this way, some large dust particles in the dusty airflow entering thecyclone separator 1014 from the bottom of the dust cup assembly 1011 areprevented by the guiding bar from entering the cyclone separator 1014,thereby reducing an amount of dust entering the cyclone separator 1014,effectively improving the dust and air separation effect, and preventingthe filter 1018 from being blocked.

As shown in FIG. 54 and FIG. 59, in an embodiment, an airflow path ofthe handheld vacuum cleaner 101 is as follows: The dusty airflow entersthe dust cup assembly 1011 through the dust suction inlet 1030, theairflow rotates round the cyclone separator and is separated, a part ofthe airflow passes through the airflow through holes and reaches theinside of the cyclone separator, the other part of the airflow entersthe cyclone separator 1014 from the bottom of the dust cup assembly1011, and the airflow entering the cyclone separator 1014 is re-filteredby the filter 1018 inside the cyclone separator 1014 to flow upward tothe motor assembly 1029 for discharge. The material of the filter 1018is waterproof hypalon.

A stick vacuum cleaner of the present invention includes a hollowextension pipe and a cleaner head (that is, a floor brush). The stickvacuum cleaner further includes the handheld vacuum cleaner 101according to the foregoing first embodiment. The handheld vacuum cleaner101 is directly or indirectly detachably connected to the extensionpipe. One end of the extension pipe is in communication with the dustsuction inlet of the handheld vacuum cleaner. The other end of theextension pipe is in communication with the cleaner head. The cleanerhead is provided with a suction channel in communication with the insideof the extension pipe, so that dust enters the extension pipe throughthe suction channel and enters the dust suction inlet along theextension pipe.

A handheld vacuum cleaner combination of the present invention includesa handheld vacuum cleaner 101 and a dust bin that is combined with andis detachably connected to the handheld vacuum cleaner 101 to increase adust collection space of the handheld vacuum cleaner 101 or accommodatethe handheld vacuum cleaner. The structure of the dust bin is the sameas the structure of the dust bin 7 according to the foregoing firstembodiment.

As shown in FIG. 62, the handheld vacuum cleaner 101 in the secondembodiment may be connected to and combined with a dust bin 1013. Thedust bin 1013 can increase a dust collection volume of the handheldvacuum cleaner 101. An inner wall of a cup body 1012 and an outer wallof a cyclone separator 1014 are arranged at a particular distance, sothat dust is not prone to blockage and quickly falls to the bottom ofthe cup body 1012 or the dust bin 1013.

As shown in FIG. 60, a handheld vacuum cleaner 102 in a third embodimentis basically the same as the handheld vacuum cleaner 101 in the secondembodiment, except the shape of the handle assembly 1024. The structureof the handle assembly 1024 makes an upper surface of a dust suctioninlet 1030 closer to an upper surface of the entire machine of thehandheld vacuum cleaner 102, which improves the accessibility duringcleaning.

As shown in FIG. 61, a handheld vacuum cleaner 103 in the fourthembodiment is basically the same as the handheld vacuum cleaner 102 inthe third embodiment. The difference is that the structure of aflow-directing structure 1031 moves down, so that the shape of theflow-directing structure 1031 corresponds to the shape of a handleassembly 1024, and the form is more pleasant. In addition, a batteryassembly 1027 is placed horizontally.

As shown in FIG. 62, the same as the handheld vacuum cleaner 101 in thesecond embodiment, both the handheld vacuum cleaner 102 in the thirdembodiment and the handheld vacuum cleaner 103 in the fourth embodimentare detachably connected to a dust bin 1013. The dust bin 1013 isconfigured to increase a dust collection space of the handheld vacuumcleaner 300 or accommodate the handheld vacuum cleaner 300. Thestructure of the dust bin 1013 is the same as the structure of the dustbin 7 according to the first embodiment.

As shown in FIG. 62, after the handheld vacuum cleaner 101 is coupled tothe dust bin 1013, the combined structure has two working modes. In thefirst mode, the vacuum cleaner independently works. In the second mode,the vacuum cleaner is connected to the dust bin 1013 to work. When thevacuum cleaner is connected to the dust bin 1013 to work, a dustcollection volume is increased. Due to an increase in the dustcollection volume, the filter 1018 bears increased burden. A filteringarea of the filter 1018 is increased, so that the dust collectionefficiency of the vacuum cleaner is improved.

Compared with a dust cup assembly 1011 in a conventional vacuum cleaner,in the dust cup assembly 1011 of the present invention, the cycloneseparator 1014 circumferentially surrounds at least a part of the filter1018, so that the filtering area is larger in a limited space. When thevolume of the vacuum cleaner is kept unchanged, the filtering area ofthe filter 1018 is increased, which ensures the filtering effect whenthe vacuum cleaner is connected to the dust bin 1013 to work, improvesthe filtering efficiency, and reduces the frequency of washing thefilter 1018.

FIG. 63 to FIG. 66 are schematic diagrams of a handheld vacuum cleaner104 according to a fifth embodiment of the present invention. Thehandheld vacuum cleaner 104 in the fifth embodiment is basically thesame as the handheld vacuum cleaner 101 in the second embodiment, exceptthe shape of the filter. In the handheld vacuum cleaner 101 in thesecond embodiment, the filter is in an inverted cone shape. However, inthe handheld vacuum cleaner 104 in the fifth embodiment, the filter hasa cylindrical shape. Other structures are all the same. In thedescriptions of the handheld vacuum cleaner 104 in the fifth embodiment,a dual-gripping handle is described in more detail.

Referring to FIG. 63, the handheld vacuum cleaner 104 includes a housing310, a motor assembly (not shown in FIG. 63), a dust cup assembly 370,and a handle assembly. The motor assembly is disposed inside the housingand is configured to generate a negative suction pressure. The dust cupassembly 370 is connected to the housing 310. The handle assembly isdisposed on the housing 310. The handle assembly includes a firstgripping area 372 and a second gripping area 374. Gripping directions ofthe first gripping area 372 and the second gripping area 374 aredifferent.

The foregoing handheld vacuum cleaner 104 is provided with the firstgripping area 372 and the second gripping area 374 with the grippingdirection different from that of the first gripping area 372. Forexample, the first gripping area 372 is transverse, and the secondgripping area 374 is longitudinal. The user may select differentgripping areas based on a current position to be cleaned for gripping,to obtain better operating comfort.

In one of the embodiments, the first gripping area 372 is located abovethe dust cup assembly 370. The second gripping area 374 is located on aside of the dust cup assembly 370.

In one of the embodiments, the handheld vacuum cleaner 104 is providedwith a dust suction inlet 380 configured to guide the external airflowinto the handheld vacuum cleaner. The dust suction inlet 380 is disposedopposite to the second gripping area 374 and is located on a side,opposite to the second gripping area 374, of the dust cup assembly 370.

In one of the embodiments, the motor assembly is located between thedust suction inlet 380 and the dust cup assembly 370. The first grippingarea 372 is disposed near the motor assembly.

In one of the embodiments, the handheld vacuum cleaner 104 includes abattery assembly. The battery assembly is located below and adjacent tothe second gripping area 374.

The present invention further provides a dual working mode vacuumcleaner. The dual working mode vacuum cleaner includes the handheldvacuum cleaner according to any one of the foregoing embodiments. FIG.64 is a schematic structural diagram of a dual working mode vacuumcleaner according to an embodiment. The dual working mode vacuum cleanerhas two working modes, that is, a horizontal mode in which the dust bin360 is used together, and a handheld mode in which the dust bin 360 isdetached. The dual working mode vacuum cleaner includes the handheldvacuum cleaner 104 and the dust bin 360. Referring to FIG. 2, thehandheld vacuum cleaner 104 includes the dust cup assembly 370, thefirst gripping area 372 disposed at the top of the dust cup assembly370, and the second gripping area 374 disposed at the rear of the dustcup assembly 370. A side, combined with the dust bin 360, of thehandheld vacuum cleaner 104 is the bottom side. A side provided with thedust suction inlet 380 is the front side. Referring to FIG. 2, when thevacuum cleaner is in the handheld mode and is detached from the dust bin360, the first gripping area 372 and the second gripping area 374 areconnected to the dust cup assembly 370. Therefore, the user can use botha first gripping gesture (that is, gripping the first gripping area 372)and a second gripping gesture (that is, gripping the second grippingarea 374) to grip the handheld vacuum cleaner 104.

For the dual working mode vacuum cleaner, the handheld vacuum cleaner104 is provided with the first gripping area 372 at the top and thesecond gripping area 374 at the rear. When the dual working mode vacuumcleaner is in the handheld working mode and is used as a handheld vacuumcleaner or a stick vacuum cleaner, a suction port is more likely tilteddownward during working. In this case, the operator grips the secondgripping area 374 for operation, so as to have better operationexperience. When the dual working mode vacuum cleaner is in thehorizontal working mode and is coupled to the dust bin 360, the suctionport is placed horizontally. In this case, the operator can move or liftthe entire machine by gripping the first gripping area 372. In addition,when the dual working mode vacuum cleaner is in the handheld workingmode and is used as a stick vacuum cleaner, a push rod working head mayneed to enter below furniture such as a cabinet and a couch. In thiscase, the operator can grip the first gripping area 372, so that theoperator bends less and has better operating comfort.

Specifically, when the user needs to use the handheld vacuum cleaner 104to perform suction horizontally, the first gripping area 372 is near thecenter of gravity of the entire machine, and therefore the user can gripthe first gripping area 372 with a reduced force. When the user needs totilt the handheld vacuum cleaner 104 to perform cleaning work, thecenter of gravity of the handheld vacuum cleaner 104 changes. If thereis only a slight change, the first gripping area 372 or the secondgripping area 374 may be freely selected because approximately the sameforce needs to be applied. However, when the handheld vacuum cleaner 104is used as a stick vacuum cleaner, due to obvious change of the centerof gravity, a smaller force needs to be applied when the second grippingarea 374 is gripped, and the second gripping area 374 is directlyopposite to the direction of applied force, which is more in line withthe working state, so that the user finds the use more convenient andeasy. For an actual gripping selection, in the present invention, theposition of the center of gravity of the entire machine is a mainfactor. If the center of gravity is closer to a gripping area, a smallerforce needs to be applied when the corresponding gripping area isselected. If the center of gravity is closer to the first gripping area372, the first gripping area 372 may be selected. If the center ofgravity is closer to the second gripping area 374, the second grippingarea 374 may be selected to be gripped.

In an embodiment, a roller may be disposed at the bottom of the dust bin360.

In an embodiment, a gap for fingers to enter for gripping is formedbetween the first gripping area 372 and the dust cup assembly 370.

In an embodiment, a gap for fingers to enter for gripping is formedbetween the second gripping area 374 and the dust cup assembly 370.

Referring to FIG. 65, in the embodiment shown in FIG. 65, the handheldvacuum cleaner 104 further includes a dust outlet cover 332 disposed atthe bottom of the dust cup assembly 370. The bottom of the dust cupassembly 370 is provided with a dust outlet. The dust outlet isconfigured to remove the dust inside a dust chamber. The dust outletcover 332 is configured to seal the dust outlet. When the dual workingmode vacuum cleaner is in a horizontal mode, the dust outlet cover 332is open, so that the dust chamber 330 of the dust cup assembly 370 is incommunication with the dust bin 360 through the dust outlet. When thedual working mode vacuum cleaner is in the handheld mode, the dustoutlet cover 332 is closed, so that the dust chamber 330 is sealed.

In an embodiment, the dual working mode vacuum cleaner further includesa dust outlet cover release button. A front end of the dust outlet cover332 is rotatably connected to the bottom of a front end of the dustchamber 330. A rear end of the dust outlet cover 332 is clamped to thebottom of a rear end of the dust chamber 330. When the dust outlet coverrelease button is pressed, the clamping state of the dust outlet cover332 and the dust chamber 330 is released. The rear end of the dustoutlet cover 332 falls naturally due to gravity, so that the dustchamber 330 is in communication with the dust bin 360. In an embodiment,the dust outlet cover release button is disposed on the handheld vacuumcleaner 104.

In the embodiment shown in FIG. 64, a motor chamber 340 of the dualworking mode vacuum cleaner is disposed between the dust suction inlet380 and the dust cup assembly 370. The dual working mode vacuum cleanerfurther includes an air guiding pipe 382 that provides communicationbetween the dust suction inlet 380 and the dust cup assembly 370. Theair guiding pipe 382 is disposed on a side surface of the motor chamber340.

In an embodiment, the motor chamber 340 is further provided with an airoutlet. FIG. 66 is a schematic diagram of an airflow direction in thehandheld vacuum cleaner 104 according to an embodiment. In thisembodiment, the air outlet is located on a side opposite to a side,connected to the air guiding pipe 382, of the motor chamber 340.

Both the top and rear of the dust cup assembly 370 are provided with ahandle. Therefore, if the air outlet is disposed at the top or rear ofthe motor chamber 340, the air outlet may become hot. When the vacuumcleaner is in the horizontal working mode, the bottom of the motorchamber 340 is also suspended with the dust bin 360. Therefore, if theair outlet is disposed at the bottom of the motor chamber 340, the dustbin 360 may form a barrier. Therefore, it is more appropriate to disposethe air outlet on one side of the motor chamber 340 as shown in FIG. 66.

Referring to FIG. 63 and FIG. 65 together, in an embodiment, the bottomof the dust suction inlet 380 is near a first clamping tongue 384disposed on the dust cup assembly 370 and extending forward (that is,extending to a direction away from the dust cup assembly 370). The dustbin 360 is provided with a second clamping tongue 386 configured to beclamped at the first clamping tongue 384. A slot is formed between thefirst clamping tongue 384 and the dust suction inlet 380 to insert thesecond clamping tongue 386. A slot is also formed between the secondclamping tongue 386 and the dust bin 360 to insert the first clampingtongue 384. Referring to FIG. 65, when the vacuum cleaner is in thehorizontal mode, the first clamping tongue 384 faces forward, and thesecond clamping tongue 386 faces backward, thereby completing theclamping of the handheld vacuum cleaner 104 and the dust bin 360. Duringclamping, the handheld vacuum cleaner 104 is pushed forward. The firstclamping tongue 384 cannot move further forward after being clamped intothe corresponding slot.

Referring to FIG. 65, in an embodiment, the dust bin 360 includes abearing portion configured to bear the handheld vacuum cleaner 104. Thebearing portion includes a first bevel 362, a second bevel 364, a firstplane 363, and a second plane 365. The first plane 363 and the secondplane 365 are parallel to the bottom of the dust bin 360. The bearingportion extends from a rear end of the dust bin 360 to a front end ofthe dust bin 360 in a sequence of the first bevel 362, the first plane363, the second bevel 364, and the second plane 365. The rear end of thedust bin is an end near the second gripping area 374 when the vacuumcleaner is in the horizontal mode. The front end of the dust bin 360 isan end near the dust suction inlet 380 when the vacuum cleaner is in thehorizontal mode. The shape of the bottom of the handheld vacuum cleaner104 should match the shape of the bearing portion, that is, structuresat the bottom of the handheld vacuum cleaner 104 respectively correspondto the shapes of the first bevel 362, the second bevel 364, first plane363, and second plane 365, so that the handheld vacuum cleaner 104 fitswith each part of the bearing portion when being fixed to the dust bin360.

In the dual working mode vacuum cleaner shown in FIG. 65, the firstbevel 362 is disposed, so that when the handheld vacuum cleaner 104needs to be mounted on the dust bin 360, the handheld vacuum cleaner 104may automatically slide into a specified position along the first bevel362 under the effect of gravity and then be carried by the second bevel364. In addition, the first plane 363 and the second plane 365 aredisposed, so that the handheld vacuum cleaner 104 is in a balanced stateand can be fixed more firmly.

In the embodiment shown in FIG. 65, an angle formed between the firstbevel 362 and the first plane 363 on a side away from the bearingportion is an obtuse angle. An angle formed between the second bevel 364and the second plane 365 and on a side away from the bearing portion isan obtuse angle.

As shown in FIG. 67, an inner wall of a cup body 366 and an outer wallof a cyclone separator 367 are arranged at a particular distance, sothat dust is not prone to blockage and quickly falls to the bottom ofthe cup body 366 or the dust bin 360. Specifically, the distance A-Cbetween the inner wall of the cup body 366 and the outer wall of thecyclone separator 367 is greater than or equal to 20 mm. In anembodiment, the distance between the inner wall of the cup body 366 andthe outer wall of the cyclone separator 367 is 23.2 mm. It may beunderstood that, the distance between the inner wall of the cup body 366and the outer wall of the cyclone separator 367 may be alternatively 25mm, 27 mm, 29 mm or another value.

Optionally, an inner wall of the cyclone separator 367 and a sidesurface of a filter 368 are arranged at a particular distance, so thatdust is not prone to blockage and quickly falls to the bottom of the cupbody 366 or the dust bin 360. Specifically, the distance B-D between theinner wall of the cyclone separator 367 and the side surface of thefilter 368 is greater than or equal to 2 mm. In an embodiment, thedistance between the inner wall of the cyclone separator 367 and theside surface of the filter 368 is 5.4 mm. It may be understood that, thedistance B-D between the inner wall of the cyclone separator 367 and theside surface of the filter 368 may be alternatively 5 mm, 7 mm, 9 mm oranother value.

Optionally, the cyclone separator 367 and a bottom surface of the filter368 are arranged at a particular distance, so that dust is not prone toblockage and quickly falls to the bottom of the cup body 366 or the dustbin 360. Specifically, the distance B-C between the cyclone separator367 and the bottom surface of the filter 368 is greater than or equal to0.5 mm. In an embodiment, the distance between the cyclone separator 367and the bottom surface of the filter 368 is 1.6 mm. It may be understoodthat, the distance between the cyclone separator 367 and the bottomsurface of the filter 368 may be alternatively 2 mm, 3 mm, 4 mm oranother value.

Optionally, the filter 368 is accommodated in the cyclone separator 367.Specifically, the diameter of the filter 368 is greater than or equal to100 mm. The height of the filter 368 is greater than or equal to 70 mm.In an embodiment, the diameter of the filter 368 is 125 mm. The heightof the filter 368 is 94 mm.

Optionally, the cup body 366 and the dust bin 360 are arranged at aparticular distance. Specifically, the distance A-D between the cup body366 and the dust bin 360 is greater than or equal to 0.5 mm. In anembodiment, the distance between the cup body 366 and a bottom surfaceof the dust bin 360 is 7.2 mm. It may be understood that, the distancebetween the cup body 366 and the dust bin 360 may be alternatively 2 mm,3 mm, 4 mm or another value.

When the vacuum cleaner works in the horizontal mode, the dust bin 360is in communication to increase the dust collection volume. The filter368 is easily blocked due to the increasing dust collection volume.Therefore, by effectively setting the distances between the filter 368,the cyclone separator 367, and the cup body 366, dust slides to the dustbin 360 more easily.

A dual working mode is provided in the present invention, that is, thehandheld mode in which the vacuum cleaner independently works and thehorizontal mode in which an external bin is combined with the vacuumcleaner. Through the design of the distances between the variouscomponents of the cup body 366, dust quickly falls to the bottom of thecup body 366 or the dust bin 360, and the dust cup assembly 370 is noteasily blocked, so as to stabilize the dust removal efficiency of thevacuum cleaner, reduce the cleaning frequency, and improve the servicelife.

FIG. 68 to FIG. 71 are schematic diagrams of a handheld vacuum cleaner105 and connection of the handheld vacuum cleaner 105 and a dust binaccording to a sixth embodiment of the present invention.

As shown in FIG. 71, in an embodiment of the present invention, a vacuumcleaner combination includes the handheld vacuum cleaner 105 and thedust bin 1013 detachably assembled on the handheld vacuum cleaner 105.The handheld vacuum cleaner 105 may independently perform a suctionoperation. In addition, the handheld vacuum cleaner 105 and the dust bin1013 may be combined to perform the suction operation. That is, thevacuum cleaner combination is operable in which the handheld vacuumcleaner 105 independently works and a second working mode in which thehandheld vacuum cleaner 105 and the dust bin 1013 are combined.

In other words, when performing suction in a small area, the handheldvacuum cleaner 105 may be detached from the dust bin 1013, to perform ahandheld independent suction operation (that is, the first workingmode). When performing suction in a large area, the dust bin 1013 may beassembled on the handheld vacuum cleaner 105 (that is, the secondworking mode), to increase a dust collection space of the handheldvacuum cleaner 105.

As shown in FIG. 68, the handheld vacuum cleaner 105 includes a dustsuction inlet 1030, a dust cup assembly 1011, a handle assembly 1024 forgripping, a motor assembly 1029 configured to supply power to generate anegative suction pressure, and a battery assembly 1027 configured tosupply electricity.

The dust suction inlet 1030 is configured to guide a dusty airflow intothe dust cup assembly 1011. The dust cup assembly 1011 is locatedbetween the dust suction inlet 1030 and the motor assembly 1029 and isconfigured to filter the dusty airflow. The handle assembly 1024 and themotor assembly 1029 are located on a same side of the dust cup assembly1011. The motor assembly 1029 is disposed inside a space surrounded bythe handle assembly 1024 and the dust cup assembly 1011. The batteryassembly 1027 is disposed below the handle assembly 1024, so that thecenter of gravity of the entire handheld vacuum cleaner 105 is near arear end of an area that is gripped by a hand. The motor assembly 1029and the battery assembly 1027 are distributed vertically, which isbeneficial for balancing the force on the rear end of the handheldvacuum cleaner 105. In addition, an axis X-X of the motor assembly 1029and an air inlet axis Y-Y of the dust suction inlet 1030 are parallel toeach other.

As shown in FIG. 69, the dust cup assembly 1011 includes a cup body1012, a cyclone separator 1014, and a filter 1018. The cyclone separator1014 is disposed inside the cup body 1012 and is configured to performcentrifugation on the dusty airflow entering the cup body 1012, toimplement dust and air separation. The filter 1018 is disposed insidethe cyclone separator 1014, to re-separate the airflow separated by thecyclone separator 1014.

The cup body 1012 approximately has a hollow cylindrical shape with anopening at an end. A dust outlet (not shown in the figure) configured todump dust is provided through the bottom of the cup body 1012 is. Thedust cup assembly 1011 further includes a cup cover (not shown in thefigure) configured to seal the dust outlet. When the handheld vacuumcleaner 105 is used independently (that is, the vacuum cleanercombination is in the first working mode), the cup cover seals the dustoutlet, so that the cup body 1012 is a sealed space provided with a cupbottom. The dusty airflow entering the cup body 1012 through the dustsuction inlet 1030 rotates around and is separated by the cycloneseparator 1014. The separated dust falls and accumulates on the cupbottom.

In an embodiment, to improve the sealing performance of the cup body1012, a sealing member is disposed on the periphery of the dust outletcover to seal a gap between the dust outlet cover and the dust outletwhen the dust outlet cover seals the dust outlet.

The cyclone separator 1014 includes a main body 1015, a plurality ofairflow through holes 1016 provided on the main body 1015, and an airguiding portion 431 connected to the main body 1015. The main body 1015is hollow and is provided with a top opening. The main body 1015 is ahollow cone whose outer diameter decreases toward the bottom of the cupbody 1012. At least a part of the filter 1018 is inserted into the mainbody 1015 through the opening of the main body 1015. The dusty airflowentering the cup body 1012 through the dust suction inlet 1030 mayrotate around the main body 1015 under the effect of the negativesuction pressure, to perform dust and air separation, that is, the dustis centrifugally removed and the airflow enters the cyclone separator1014 through the plurality of airflow through holes 1016.

The cyclone separator 1014 is a first-stage cyclone structure. The dustyair entering the main body 1015 may rotate around the main body 1015 tocentrifugally remove the dust, thereby further improving the dustremoval effect. In another embodiment, the cyclone separator 1014 may bea multistage cyclone structure, that is, a cyclone cavity used forcyclonic separation includes multistage cyclone cavities in sequentialcommunication in the direction of the airflow. Therefore, the dustyairflow entering the main body 121 may sequentially pass through themultistage cyclone cavities to undergo repeated dust and air separation,thereby improving the dust removal effect.

In one of the embodiments, the cyclone separator 1014 is provided with aflow-guiding structure 1017 disposed below the main body 1015 andconfigured to guide the airflow. The flow-guiding structure 1017includes a plurality of guiding bars. The guiding bars are diagonallyarranged, and an arrangement direction is the same as a direction inwhich the airflow rotates around the cyclone separator 1014. Theplurality of guiding bars are arranged in a circumferential direction ofthe bottom of the main body 1015. There is a gap between adjacentguiding bars, and the gap allows the air obtained after cyclonicseparation to enter the main body 1015. The guiding bar can reduce thespeed at which the air obtained after cyclonic separation enters themain body 1015. In addition, the guiding bar can adsorb some dustparticles, to prevent the air obtained after cyclonic separation fromstirring the dust particles obtained after cyclonic separation again toenter the main body 1015. In this way, some large dust particles in thedusty airflow entering the cyclone separator 1014 from the bottom of thecup body 1012 are prevented by the guiding bar from entering the cycloneseparator 1014, thereby reducing an amount of dust entering the cycloneseparator 1014, effectively improving the dust and air separationeffect, and preventing the filter 1018 from being blocked.

The main body 1015 is configured to accommodate a part of the filter1018. Specifically, the main body 1015 may have a frustum shape, acolumnar shape or another shape capable of accommodating a part of thefilter. In an embodiment, the main body 1015 has a frustum shape.

The cyclone separator 1014 is detachably connected to the filter 1018.Specifically, the “detachably connected” is a buckle connection,magnetic attraction or another connection manner. In an embodiment, thecyclone separator 1014 and the filter 1018 are in a buckle connection,to facilitate detachment of the cyclone separator 1014 from the filter1018, thereby facilitating cleaning.

An air guiding portion 431 is convexly disposed on a circumferentialside of the main body 1015, and an air guiding groove 432 is opened. Theair guiding groove 432 extends spirally in the circumferential directionof the main body 1015. A bottom surface of the air guiding portion 431is provided with an air guiding section 433. The air guiding section 433tilts spirally relative to the central axis of the main body 1015. Theair guiding portion 431 enables the air to enter in the form of acyclone and performs cyclonic separation. The spiral extension controlsan air entry direction, so that the dust obtained after the cyclonicseparation gathers at the bottom.

The filter 1018 is also a hollow cone that matches the cyclone separator1014 and whose outer diameter decreases toward the bottom of the cupbody 1012. An airflow outlet channel 1341 in communication with themotor assembly 1029 is formed axially inside the filter 1018. Theairflow entering the cyclone separator 1014 re-rotates around thecone-shaped filter 1018 under the effect of the negative suctionpressure, to be re-filtered to flow upward to the motor assembly 1029for discharge.

In an embodiment, the filter 1018 is disposed in the cyclone separator1014. The filter 1018 has a columnar shape or a table shape.Specifically, the filter 1018 may have a columnar shape, a round tableshape, a prismatic shape or another shape that can be disposed in thecyclone separator 1014. In an embodiment, the filter 1018 has a roundtable shape.

The filter 1018 filters dust. Specifically, the material of the filter1018 includes paper, cloth, waterproof hypalon, or another filtermaterial. In an embodiment, the material of the filter 1018 iswaterproof hypalon. The material of the filter 1018 is waterproofhypalon, so that the vacuum cleaner has both a wet use and a dry use. Inan embodiment, the filter 1018 is columnar, and is surrounded bylaminated waterproof hypalon to form a hollow columnar shape. A foldwidth is from 2 mm to 20 mm, and the fold width is a width of thelaminated part of the waterproof hypalon; and/or, a lateral area of thecolumn of the filter 1018 is from 15,000 square millimeters to 20,000square millimeters; and/or, an unfolded area of the filter 1018 is from80,000 square millimeters to 120,000 square millimeters. Preferably, thefold width is 10 mm.

The material of the filter 1018 is waterproof hypalon. The handheldvacuum cleaner 105 may be used as a vacuum cleaner for a wet use and adry use. Therefore, dust may be dust with liquid property, and with thewaterproof function, moisture is prevented from entering the motorassembly 1029 to protect electrical elements from damage. In anotherembodiment, the material of the filter 1018 is not limited to waterproofhypalon, and the filter 1018 may be another filter structure, forexample, a multistage filter structure having a secondary filteringeffect that is combined with the cyclone separator 1014 or integrallydisposed with the cyclone separator 1014. The dust may be separatedcompletely in a manner of multistage filtering. The present invention isapplicable to wet treatment, for example, water suction. Therefore, inaddition to a waterproof design of the filter 1018 or liquid treatmentof the cyclone separator 1014, the electrical elements such as the motorassembly 1029 may be designed to be waterproof to further protect theelectrical elements, thereby eventually ensuring working stability andsafety of the liquid treatment of the handheld vacuum cleaner 105.

As shown in FIG. 68 and FIG. 70, when the handheld vacuum cleaner 105 isused independently, an airflow path is as follows:

The dusty airflow entering the cup body 1012 enters the cycloneseparator 1014 through the airflow through holes 1016 after rotatingaround the cyclone separator 1014, and is filtered by the filter 1018inside the cyclone separator 1014 to flow upward to the motor assembly1029 for discharge.

When the handheld vacuum cleaner 105 and the dust bin 1013 are combined,the dust bin 1013 is assembled on the cup body 1012 of the handheldvacuum cleaner 105. The dust outlet cover is open relative to the dustoutlet, so that the dust outlet is opposite to an opening end of thedust bin 1013 and is in communication with the dust bin 1013. Theairflow path is as follows: The dusty airflow entering the cup body 1012rotates around the cyclone separator 1014 and is separated, so thatinitial dust and air separation is performed on the dusty airflow. Thedust falls through the dust outlet and accumulates in the dust bin 1013.The airflow is divided into two streams to flow:

A part of the airflow enters the cyclone separator 1014 through theairflow through holes 1016, and is filtered by the filter 1018 insidethe cyclone separator 1014 to flow upward to the motor assembly 1029 fordischarge.

The other part of the airflow flows upward into the cup body 1012 afterflowing to the dust bin 1013 through the dust outlet, enters the cycloneseparator 1014 through the plurality of airflow through holes 1016, andis filtered by the filter 1018 inside the cyclone separator 1014 to flowupward to the motor assembly 1029 for discharge.

In other words, the vacuum cleaner combination has the first workingmode suitable for a small area and the second working mode suitable fora large area. In the first working mode, the handheld vacuum cleaner 105may be detached from the dust bin 1013 and is held by the user tooperate. In this case, an airflow channel exists in the handheld vacuumcleaner 105. In the second working mode, the handheld vacuum cleaner 105is coupled to the dust bin 1013. In this case, two airflow channelsexist in the handheld vacuum cleaner 105 to collect dust through thedust bin 1013.

Further, a roller 1034 is disposed at the bottom of the dust bin 1013and is configured to implement a function that the vacuum cleanercombination moves when performing suction in a large area in the secondworking mode (that is, the horizontal mode).

In addition, the periphery of the opening, assembled on a side of thedust outlet of the handheld vacuum cleaner 105, of the dust bin 1013 isprovided with a sealing structure. After the handheld vacuum cleaner 105is mounted into the dust bin 1013, regardless of whether the dust outletcover is open or not, the sealing structure maintains the seal betweenthe periphery of the dust outlet and the dust bin 1013.

In the vacuum cleaner 100 in the present invention, the handheld vacuumcleaner 105 and the dust bin 1013 are combined detachably, so that thevacuum cleaner combination has two suction modes, that is, the firstworking mode suitable for a small area and the second working modesuitable for a large area. In addition, the filter 1018 is disposedinside the cyclone separator 1014. The dusty airflow in the handheldvacuum cleaner 105 first undergoes dust and air separation by thecyclone separator 1014, so that the dry and wet dusty airflow ispretreated. The airflow then enters the filter 1018 inside the cycloneseparator 1014 to be filtered, so that the airflow with a small amountof dust flows through the filter 1018, so as to prevent the filter 1018from being blocked, prolong the service life of the filter 1018, andimprove the dust removal performance.

The descriptions of the two working modes in the sixth embodiment of thepresent invention are also applicable to the vacuum cleaner combinationin each of the other embodiments discussed above.

When the handheld vacuum cleaners 101, 102, 103, 104, and 105 in theforegoing embodiments of the present invention work, an extension pipeand a cleaner head may be connected. The handheld vacuum cleaner isdirectly or indirectly detachably connected to the extension pipe. Oneend of the extension pipe is in communication with the dust suctioninlet of the handheld vacuum cleaner. The other end of the extensionpipe is in communication with the cleaner head. The cleaner head isprovided with a suction channel in communication with the inside of theextension pipe, so that dust enters the extension pipe through thesuction channel and enters the dust suction inlet along the extensionpipe. The extension pipe may be a rigid pipe, a flexible pipe, acombination of flexible and rigid pipes, or a telescopic pipe. Duringspecific working application, the user can select accessories accordingto an actual application scenario. When the handheld vacuum cleaner doesnot need the extension pipe for suction, for example, when anotheraccessory such as a gap suction head or a mite suction head needs to beused for suction, the extension pipe may be detached from the dustsuction inlet of the handheld vacuum cleaner, and an actually requiredaccessory is assembled on the dust suction inlet of the handheld vacuumcleaner. One end of the extension pipe is directly detachably connectedto the dust suction inlet. For example, the extension pipe may bemounted on the dust suction inlet and detached from the dust suctioninlet by a fast detachable buckle structure. In this way, detachment andmounting are convenient.

All the handheld vacuum cleaners 101, 102, 103, 104, and 105 in theforegoing embodiments of the present invention can be combined with thedust bin. The dust bin can increase a dust collection space, and isanother embodiment, the dust bin can also accommodate the handheldvacuum cleaner.

It should be noted that, in all the embodiments of the presentinvention, the direction “front” may be understood as the direction ofthe dust suction inlet of the handheld vacuum cleaner during actual use,and the opposite direction is defined as “rear”. The direction “up” maybe understood as the opening direction of the dust outlet of thehandheld vacuum cleaner during actual use, and the opposite direction isdefined as “down”.

In the handheld vacuum cleaner combinations in all the embodiments ofthe present invention, each of the handheld vacuum cleaners 101, 102,103, 104, and 105 has a working state in which the dust outlet cover isopen and a non-working state in which the dust outlet cover is closed.That is, when the dust bin is used for dust collection, the handheldvacuum cleaner is in the working state, and the dust outlet cover isopen. When the dust bin is used for accommodation, the handheld vacuumcleaner is in the non-working state, and the dust outlet cover is notopen in a possible embodiment to prevent the dust that remains insidethe cup body from leaving the cup body during accommodation. Certainly,in another non-preferred embodiment, when the handheld vacuum cleaner isin the non-working state, the dust outlet cover may also be open. In theforegoing embodiments of the present invention, a position adjuster ismainly disposed to perform adjustment to allow the dust outlet cover tobe not open during accommodation.

In the handheld vacuum cleaners 101, 102, 103, 104, and 105 or handheldvacuum cleaner combinations or stick vacuum cleaners according to allthe foregoing embodiments of the present invention, the handheld vacuumcleaners use a filtering apparatus. When the filtering apparatus is acyclonic separation structure, the cyclonic separation structure may bea first-stage cyclone or a multistage cyclone. In the solutions in whichthe handheld vacuum cleaner uses cyclonic separation shown in theaccompanying drawings of the present invention, the cyclonic separationstructure is the first-stage cyclone. In another embodiment not shown inthe figures of the present invention, the multistage cyclonic separationstructure may be alternatively used.

In the present invention, the dust bin is disposed. In a garage oranother area with a large amount of dust, the dust bin is used toincrease the dust collection space. There is usually a large amount ofdust such as wood chips in a garage, and there may be liquid dust suchas water. The present invention can meet dust suction in a dry scenarioand a wet scenario, ensuring convenient use. There are a variety of usestates, and a plurality of options may be provided.

For the prior art, in the present invention, the detachablemulti-purpose dust bin is disposed, so that the structure is simple, andthe dust collection chamber of the vacuum cleaner is flexibly increased.In addition, the dust bin can also accommodate the handheld vacuumcleaner, so that the accommodation space is saved, and the accommodationenvironment is pleasant.

The present invention mainly protects an independent dust bin structure,protects the structure of the handheld vacuum cleaner combination inwhich the dust bin is combined with the handheld vacuum cleaner, andprotects the structure of the stick vacuum cleaner provided with thedust bin and the handheld vacuum cleaner. A structure inside thehandheld vacuum cleaner in the present invention is not limited. In theforegoing embodiments of the present invention, the descriptions relatedto the diagonally disposed filtering apparatus are preferred embodimentsof the present invention. To reduce the height and length of the entiremachine and provide the vacuum cleaner with compact structure, a smallsize, and light weight, the filtering apparatus is diagonally disposed.As described in the foregoing embodiments, the structure of thefiltering apparatus is not limited. The filtering apparatus may be acommon filter or may be a cyclone separator having the cyclonicseparation effect.

Although only several embodiments of the present invention are describedand shown in the specification, a person skilled in the art shouldeasily conceive of other means or structures for performing thefunctions described herein or obtaining the structures described herein.Any such change or modification is considered to fall within the scopeof the present invention.

What is claimed is:
 1. A vacuum cleaner combination, comprising: a dustsuction apparatus, comprising a housing, a dust suction inlet, and adust cup assembly connected to the housing, wherein the dust cupassembly comprises a cup body; and a dust bin, configured to be coupledto the cup body and collect dust sucked by the dust suction apparatus,wherein the dust bin and the cup body are in communication with eachother, wherein the vacuum cleaner combination is operable in and asecond working mode; in the first working mode, the dust suctionapparatus is not coupled to the dust bin, and the dust suction apparatusindependently works and is responsible for dust suction and dustcollection; and in the second working mode, the dust suction apparatusis coupled to the dust bin, and the dust bin and the cup body are bothresponsible for dust collection.
 2. The vacuum cleaner combinationaccording to claim 1, wherein the dust bin comprises a dust chamber anda dust inlet in communication with the dust chamber, and the dust inletreceives dust passing through the dust suction apparatus when the vacuumcleaner combination is in the second working mode.
 3. The vacuum cleanercombination according to claim 2, wherein the cup body is provided witha dust outlet, and the dust outlet is airtightly joined to the dustinlet in the second working mode.
 4. The vacuum cleaner combinationaccording to claim 3, wherein a first sealing member is disposed betweenthe dust outlet and the dust inlet.
 5. The vacuum cleaner combinationaccording to claim 4, wherein the dust outlet is columnar, the size ofthe dust inlet is greater than that of the dust outlet, and the firstsealing member is disposed between the dust outlet and the dust inlet.6. The vacuum cleaner combination according to claim 4, wherein the dustcup is provided with a dust cup cover configured to seal the dustoutlet, and a second sealing member implementing the seal between thedust outlet and the dust cup cover, and the first sealing membercircumferentially surrounds the second sealing member and the dust cupcover.
 7. The vacuum cleaner combination according to claim 6, whereinthe dust bin is provided with an abutting portion configured to controlthe dust cup cover to automatically open, and the abutting portion isdisposed at the dust inlet and is located inside the first sealingmember.
 8. The vacuum cleaner combination according to claim 6, whereinthe handheld vacuum cleaner is provided with a latching portioncontrolling the dust cup cover to open or close, the abutting portion isprovided with a first location, and the abutting portion is capable ofabutting and fitting the latching portion at the first location tocontrol the dust cup cover to open.
 9. The vacuum cleaner combinationaccording to claim 8, wherein the handheld vacuum cleaner is alsoprovided with a rotating portion and a reset structure, when thelatching portion controls the dust cup cover to open, the dust cup coverrotates around the rotating portion, and when the latching portionreleases locking, the dust cup cover is driven by the reset structure toopen outward.
 10. The vacuum cleaner combination according to claim 9,wherein the dust cup cover automatically opens outward by an angle in arange of 110° to 190°.
 11. The vacuum cleaner combination according toclaim 2, wherein the dust bin comprises a base portion and a top portionthat fits the base portion, and the top portion is provided with thedust inlet.
 12. The vacuum cleaner combination according to claim 11,wherein the base portion is provided with a bottom surface located atthe bottom and a side surface that is connected to the bottom surfaceand forms the dust chamber together with the bottom surface, and theside surface is provided with a transparent window.
 13. The vacuumcleaner combination according to claim 11, wherein the base portion andthe top portion flexibly fit each other.
 14. The vacuum cleanercombination according to claim 1, wherein a first fixing structure and asecond fixing structure are respectively disposed at two ends of thedust bin, and the handheld vacuum cleaner is provided with a firstpositioning buckle buckled with the first fixing structure and a secondpositioning buckle buckled with the second fixing structure.
 15. Thevacuum cleaner combination according to claim 1, wherein the dustsuction apparatus comprises the dust cup assembly and a motor assembly,the dust cup assembly comprises the cup body and a cyclone separatordisposed inside the cup body, the motor assembly is configured togenerate a negative suction pressure, and the motor assembly is locatedbetween the dust suction inlet and the dust cup assembly.
 16. The vacuumcleaner combination according to claim 15, wherein the dust suctioninlet has an air inlet axis, the motor assembly has a motor axis, andthe air inlet axis and the motor axis are parallel to each other. 17.The vacuum cleaner combination according to claim 15, wherein the dustsuction apparatus comprises a flow-directing structure, and theflow-directing structure is connected to the dust suction inlet and thecup body to guide a dusty airflow into the cup body through the dustsuction inlet.
 18. The vacuum cleaner combination according to claim 17,wherein the flow-directing structure is bent and extends outward in apipe shape from an end, near the dust suction inlet, of the housing, andis connected to a side of the cup body and is in communication with thecup body.
 19. The vacuum cleaner combination according to claim 15,wherein the dust suction apparatus is provided with a battery assembly,and the battery assembly and the motor assembly are respectively locatedon two sides of the cup body.
 20. The vacuum cleaner combinationaccording to claim 19, wherein the cup body is provided with a dustoutlet located at the bottom of the vacuum cleaner combination, and thebattery assembly is located at an end, near the dust outlet, of the cupbody.
 21. The vacuum cleaner combination according to claim 15, whereinthe dust suction apparatus comprises a handle assembly, the handleassembly is used for gripping, the handle assembly comprises a firstgripping area and a second gripping area, and gripping directions of thefirst gripping area and the second gripping area are different.
 22. Thevacuum cleaner combination according to claim 21, wherein the firstgripping area is near the motor assembly and is located above the cupbody.
 23. The vacuum cleaner combination according to claim 21, whereinthe second gripping area extends in a length direction of the cup body,and the second gripping area and the motor assembly are respectivelylocated on two sides of the cup body.
 24. The handheld vacuum cleaneraccording to claim 23, wherein the dust suction apparatus is providedwith a battery assembly, and the battery assembly is located below thesecond gripping area and is mounted adjacent to the second grippingarea.
 25. The handheld vacuum cleaner according to claim 21, wherein anangle between the first gripping area and the second gripping area isfrom 90° to 135°.
 26. The vacuum cleaner combination according to claim1, wherein the dust suction apparatus comprises the dust cup assemblyand a motor assembly, the dust cup assembly comprises a cycloneseparator disposed inside the cup body and provided with a plurality ofairflow through holes and a filter disposed inside the cycloneseparator, and the cyclone separator circumferentially surrounds atleast a part of the filter.
 27. The vacuum cleaner combination accordingto claim 26, wherein the cyclone separator comprises a main body, themain body is a hollow cone whose outer diameter decreases towards thebottom of the cup body, and the plurality of airflow through holes areopened in the main body.
 28. The vacuum cleaner combination according toclaim 26, wherein the filter is a hollow cone whose outer diameterdecreases towards the bottom of the cup body, and the filter forms anairflow outlet channel in communication with the motor assembly in anaxial direction.
 29. The vacuum cleaner combination according to claim26, wherein the material of the filter is waterproof hypalon.
 30. Thevacuum cleaner combination according to claim 26, wherein the filter iscolumnar, and is surrounded by laminated waterproof hypalon to form ahollow columnar shape, and a fold height of the filter is from 2 mm to20 mm; and/or, a lateral area of the column of the filter is from 15,000square millimeters to 20,000 square millimeters; and/or, an unfoldedarea of the filter is from 80,000 square millimeters to 120,000 squaremillimeters.
 31. The vacuum cleaner combination according to claim 1,wherein the dust cup assembly comprises a cyclone separator disposedinside the cup body and provided with a plurality of airflow throughholes and a filter disposed inside the cyclone separator, a motorassembly is configured to supply power and generate a negative suctionpressure, and in the first working mode, a dusty airflow enters thecyclone separator through the airflow through holes after entering thecup body and rotating around the cyclone separator, and flows upward toflow to the motor assembly for discharge after being filtered by thefilter inside the cyclone separator.
 32. The vacuum cleaner combinationaccording to claim 1, wherein the dust cup assembly comprises a cycloneseparator disposed inside the cup body and provided with a plurality ofairflow through holes and a filter disposed inside the cycloneseparator, and a motor assembly is configured to supply power andgenerate a negative suction pressure, and in the second working mode,after a dusty airflow enters the cup body and rotates around the cycloneseparator and is separated, a part of the airflow flows upward to flowto the motor assembly for discharge after being filtered by the filterinside the cyclone separator; and the other part of the airflow flowsupward to the cup body after flowing to an expansion box of the dustbin, and flows upward to the motor assembly for discharge after beingfiltered by the filter inside the cyclone separator.
 33. The vacuumcleaner combination according to claim 32, wherein the cyclone separatorcomprises a flow-guiding structure, and the flow-guiding structure isdisposed below a main body and comprises a plurality of guiding bars;and the guiding bars are arranged diagonally and an arrangementdirection is the same as an airflow rotating direction.
 34. A vacuumcleaner combination, comprising: a dust suction apparatus, comprising ahousing, a dust suction inlet, and a dust cup assembly connected to thehousing, wherein the dust cup assembly comprises a cup body; and a dustbin, configured to be coupled to the cup body and collect dust sucked bythe dust suction apparatus, wherein the dust bin and the cup body are incommunication with each other, wherein the vacuum cleaner combination isoperable in and a second working mode, the dust suction apparatus has afirst dust collection capacity, and the dust bin has a second dustcollection capacity; in the first working mode, a dust collectioncapacity is the first dust collection capacity; and in the first workingmode, the dust collection capacity is the sum of the first dustcollection capacity and the second dust collection capacity.
 35. A stickvacuum cleaner, comprising a hollow extension pipe and a cleaner head,wherein the stick vacuum cleaner further comprises the vacuum cleanercombination according to any one of claims 1 to 33, a dust suctionapparatus in the vacuum cleaner combination is detachably connected toan extension pipe, one end of the extension pipe is in communicationwith a dust suction inlet of the dust suction apparatus, the other endof the extension pipe is in communication with the cleaner head, and thecleaner head is provided with a suction channel in communication withthe inside of the extension pipe.